Console.Write 方法

public:
 static void Write(System::String ^ format, System::Object ^ arg0, System::Object ^ arg1, System::Object ^ arg2, System::Object ^ arg3);

[System.CLSCompliant(false)]
public static void Write (string format, object arg0, object arg1, object arg2, object arg3);

[<System.CLSCompliant(false)>]
static member Write : string * obj * obj * obj * obj -> unit

Public Shared Sub Write (format As String, arg0 As Object, arg1 As Object, arg2 As Object, arg3 As Object)

参数

属性

CLSCompliantAttribute

例外

示例

以下示例演示如何将变量参数与 方法结合使用 Write(String, Object, Object, Object, Object) 。 方法使用复合格式字符串和五个格式项调用。

using namespace System;

//void main(array<System::String ^> ^args)
void main()
{
   DateTime dateRecorded(2009, 6, 15);
   DateTime startTime(1, 1, 1, 0, 30, 0);
   TimeSpan interval(12, 0, 0);

   Double temperature1 = 52.8;
   Double temperature2 = 63.5;
   
   Console::Write("Date: {0:d}:\n   Temperature at {1:t}: {2}\n   Temperature at {3:t}: {4}\n", 
                  dateRecorded, startTime, temperature1, 
                  startTime.Add(interval), temperature2);
    Console::ReadLine();
}
// The example displays the following output:
//      Date: 6/15/2009:
//         Temperature at 12:30 AM: 52.8
//         Temperature at 12:30 PM: 63.5

注解

此方法使用 .NET 的 复合格式设置功能 将对象的值转换为其文本表示形式，并将该表示形式嵌入字符串中。 生成的字符串将写入输出流。

参数 format 包含与零个或多个索引占位符（称为格式项）混合的零个或多个文本运行，这些占位符对应于此方法的参数列表中的对象。 格式设置过程将每个格式项替换为相应对象值的文本表示形式。

格式项的语法是 {index[,alignment][:formatString]}，它指定强制索引、格式化文本的可选长度和对齐方式，以及控制相应对象值的格式设置方式的格式说明符字符的可选字符串。

.NET 提供广泛的格式设置支持，以下格式设置主题对此进行了更详细的介绍。

• 有关 、 等FormatAppendFormat方法支持的复合格式设置功能的详细信息，以及 的WriteLine一些重载，请参阅复合格式设置。

• 有关数值格式说明符的详细信息，请参阅 标准数值格式字符串 和 自定义数值格式字符串。

• 有关日期和时间格式说明符的详细信息，请参阅 标准日期和时间格式字符串 和 自定义日期和时间格式字符串。

• 有关枚举格式说明符的详细信息，请参阅 枚举格式字符串。

• 有关格式设置的详细信息，请参阅 格式设置类型。

调用方说明

此方法标有vararg关键字 (keyword) ，这意味着它支持可变数量的参数。 可以从 Visual C++ 调用 方法，但不能从 C# 或 Visual Basic 代码调用该方法。 C# 和 Visual Basic 编译器将 调用 Write(String, Object, Object, Object, Object) 解析为对 的 Write(String, Object[])调用。

另请参阅

• Read()
• ReadLine()
• WriteLine()
• 设置 .NET 中类型的格式
• 复合格式设置

Source:

Console.cs

Source:

Console.cs

Source:

Console.cs

public:
 static void Write(System::String ^ format, System::Object ^ arg0, System::Object ^ arg1, System::Object ^ arg2);

public static void Write (string format, object? arg0, object? arg1, object? arg2);

public static void Write (string format, object arg0, object arg1, object arg2);

static member Write : string * obj * obj * obj -> unit

Public Shared Sub Write (format As String, arg0 As Object, arg1 As Object, arg2 As Object)

参数

例外

示例

下面的示例使用 WriteLine 方法演示数字、日期和枚举的标准格式说明符。

// This code example demonstrates the Console.WriteLine() method.
// Formatting for this example uses the "en-US" culture.

using namespace System;

public enum class Color {Yellow = 1, Blue, Green};

int main() 
{
    DateTime thisDate = DateTime::Now;
    Console::Clear();

    // Format a negative integer or floating-point number in various ways.
    Console::WriteLine("Standard Numeric Format Specifiers");
    Console::WriteLine(
        "(C) Currency: . . . . . . . . {0:C}\n" +
        "(D) Decimal:. . . . . . . . . {0:D}\n" +
        "(E) Scientific: . . . . . . . {1:E}\n" +
        "(F) Fixed point:. . . . . . . {1:F}\n" +
        "(G) General:. . . . . . . . . {0:G}\n" +
        "    (default):. . . . . . . . {0} (default = 'G')\n" +
        "(N) Number: . . . . . . . . . {0:N}\n" +
        "(P) Percent:. . . . . . . . . {1:P}\n" +
        "(R) Round-trip: . . . . . . . {1:R}\n" +
        "(X) Hexadecimal:. . . . . . . {0:X}\n",
        -123, -123.45f); 

    // Format the current date in various ways.
    Console::WriteLine("Standard DateTime Format Specifiers");
    Console::WriteLine(
        "(d) Short date: . . . . . . . {0:d}\n" +
        "(D) Long date:. . . . . . . . {0:D}\n" +
        "(t) Short time: . . . . . . . {0:t}\n" +
        "(T) Long time:. . . . . . . . {0:T}\n" +
        "(f) Full date/short time: . . {0:f}\n" +
        "(F) Full date/long time:. . . {0:F}\n" +
        "(g) General date/short time:. {0:g}\n" +
        "(G) General date/long time: . {0:G}\n" +
        "    (default):. . . . . . . . {0} (default = 'G')\n" +
        "(M) Month:. . . . . . . . . . {0:M}\n" +
        "(R) RFC1123:. . . . . . . . . {0:R}\n" +
        "(s) Sortable: . . . . . . . . {0:s}\n" +
        "(u) Universal sortable: . . . {0:u} (invariant)\n" +
        "(U) Universal full date/time: {0:U}\n" +
        "(Y) Year: . . . . . . . . . . {0:Y}\n", 
        thisDate);

    // Format a Color enumeration value in various ways.
    Console::WriteLine("Standard Enumeration Format Specifiers");
    Console::WriteLine(
        "(G) General:. . . . . . . . . {0:G}\n" +
        "    (default):. . . . . . . . {0} (default = 'G')\n" +
        "(F) Flags:. . . . . . . . . . {0:F} (flags or integer)\n" +
        "(D) Decimal number: . . . . . {0:D}\n" +
        "(X) Hexadecimal:. . . . . . . {0:X}\n", 
        Color::Green);       

};


/*
This code example produces the following results:

Standard Numeric Format Specifiers
(C) Currency: . . . . . . . . ($123.00)
(D) Decimal:. . . . . . . . . -123
(E) Scientific: . . . . . . . -1.234500E+002
(F) Fixed point:. . . . . . . -123.45
(G) General:. . . . . . . . . -123
(default):. . . . . . . . -123 (default = 'G')
(N) Number: . . . . . . . . . -123.00
(P) Percent:. . . . . . . . . -12,345.00 %
(R) Round-trip: . . . . . . . -123.45
(X) Hexadecimal:. . . . . . . FFFFFF85

Standard DateTime Format Specifiers
(d) Short date: . . . . . . . 6/26/2004
(D) Long date:. . . . . . . . Saturday, June 26, 2004
(t) Short time: . . . . . . . 8:11 PM
(T) Long time:. . . . . . . . 8:11:04 PM
(f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
(F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
(g) General date/short time:. 6/26/2004 8:11 PM
(G) General date/long time: . 6/26/2004 8:11:04 PM
(default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
(M) Month:. . . . . . . . . . June 26
(R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
(s) Sortable: . . . . . . . . 2004-06-26T20:11:04
(u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
(U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
(Y) Year: . . . . . . . . . . June, 2004

Standard Enumeration Format Specifiers
(G) General:. . . . . . . . . Green
(default):. . . . . . . . Green (default = 'G')
(F) Flags:. . . . . . . . . . Green (flags or integer)
(D) Decimal number: . . . . . 3
(X) Hexadecimal:. . . . . . . 00000003

*/

// This code example demonstrates the Console.WriteLine() method.
// Formatting for this example uses the "en-US" culture.

using System;
class Sample
{
    enum Color {Yellow = 1, Blue, Green};
    static DateTime thisDate = DateTime.Now;

    public static void Main()
    {
        Console.Clear();

        // Format a negative integer or floating-point number in various ways.
        Console.WriteLine("Standard Numeric Format Specifiers");
        Console.WriteLine(
            "(C) Currency: . . . . . . . . {0:C}\n" +
            "(D) Decimal:. . . . . . . . . {0:D}\n" +
            "(E) Scientific: . . . . . . . {1:E}\n" +
            "(F) Fixed point:. . . . . . . {1:F}\n" +
            "(G) General:. . . . . . . . . {0:G}\n" +
            "    (default):. . . . . . . . {0} (default = 'G')\n" +
            "(N) Number: . . . . . . . . . {0:N}\n" +
            "(P) Percent:. . . . . . . . . {1:P}\n" +
            "(R) Round-trip: . . . . . . . {1:R}\n" +
            "(X) Hexadecimal:. . . . . . . {0:X}\n",
            -123, -123.45f);

        // Format the current date in various ways.
        Console.WriteLine("Standard DateTime Format Specifiers");
        Console.WriteLine(
            "(d) Short date: . . . . . . . {0:d}\n" +
            "(D) Long date:. . . . . . . . {0:D}\n" +
            "(t) Short time: . . . . . . . {0:t}\n" +
            "(T) Long time:. . . . . . . . {0:T}\n" +
            "(f) Full date/short time: . . {0:f}\n" +
            "(F) Full date/long time:. . . {0:F}\n" +
            "(g) General date/short time:. {0:g}\n" +
            "(G) General date/long time: . {0:G}\n" +
            "    (default):. . . . . . . . {0} (default = 'G')\n" +
            "(M) Month:. . . . . . . . . . {0:M}\n" +
            "(R) RFC1123:. . . . . . . . . {0:R}\n" +
            "(s) Sortable: . . . . . . . . {0:s}\n" +
            "(u) Universal sortable: . . . {0:u} (invariant)\n" +
            "(U) Universal full date/time: {0:U}\n" +
            "(Y) Year: . . . . . . . . . . {0:Y}\n",
            thisDate);

        // Format a Color enumeration value in various ways.
        Console.WriteLine("Standard Enumeration Format Specifiers");
        Console.WriteLine(
            "(G) General:. . . . . . . . . {0:G}\n" +
            "    (default):. . . . . . . . {0} (default = 'G')\n" +
            "(F) Flags:. . . . . . . . . . {0:F} (flags or integer)\n" +
            "(D) Decimal number: . . . . . {0:D}\n" +
            "(X) Hexadecimal:. . . . . . . {0:X}\n",
            Color.Green);
    }
}
/*
This code example produces the following results:

Standard Numeric Format Specifiers
(C) Currency: . . . . . . . . ($123.00)
(D) Decimal:. . . . . . . . . -123
(E) Scientific: . . . . . . . -1.234500E+002
(F) Fixed point:. . . . . . . -123.45
(G) General:. . . . . . . . . -123
    (default):. . . . . . . . -123 (default = 'G')
(N) Number: . . . . . . . . . -123.00
(P) Percent:. . . . . . . . . -12,345.00 %
(R) Round-trip: . . . . . . . -123.45
(X) Hexadecimal:. . . . . . . FFFFFF85

Standard DateTime Format Specifiers
(d) Short date: . . . . . . . 6/26/2004
(D) Long date:. . . . . . . . Saturday, June 26, 2004
(t) Short time: . . . . . . . 8:11 PM
(T) Long time:. . . . . . . . 8:11:04 PM
(f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
(F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
(g) General date/short time:. 6/26/2004 8:11 PM
(G) General date/long time: . 6/26/2004 8:11:04 PM
    (default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
(M) Month:. . . . . . . . . . June 26
(R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
(s) Sortable: . . . . . . . . 2004-06-26T20:11:04
(u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
(U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
(Y) Year: . . . . . . . . . . June, 2004

Standard Enumeration Format Specifiers
(G) General:. . . . . . . . . Green
    (default):. . . . . . . . Green (default = 'G')
(F) Flags:. . . . . . . . . . Green (flags or integer)
(D) Decimal number: . . . . . 3
(X) Hexadecimal:. . . . . . . 00000003

*/

// This code example demonstrates the Console.WriteLine() method.
// Formatting for this example uses the "en-US" culture.

open System

type Color = 
    | Yellow = 1
    | Blue = 2
    | Green = 3

let thisDate = DateTime.Now

Console.Clear()

// Format a negative integer or floating-point number in various ways.
Console.WriteLine "Standard Numeric Format Specifiers"
Console.WriteLine(
    "(C) Currency: . . . . . . . . {0:C}\n" +
    "(D) Decimal:. . . . . . . . . {0:D}\n" +
    "(E) Scientific: . . . . . . . {1:E}\n" +
    "(F) Fixed point:. . . . . . . {1:F}\n" +
    "(G) General:. . . . . . . . . {0:G}\n" +
    "    (default):. . . . . . . . {0} (default = 'G')\n" +
    "(N) Number: . . . . . . . . . {0:N}\n" +
    "(P) Percent:. . . . . . . . . {1:P}\n" +
    "(R) Round-trip: . . . . . . . {1:R}\n" +
    "(X) Hexadecimal:. . . . . . . {0:X}\n",
    -123, -123.45f)

// Format the current date in various ways.
Console.WriteLine "Standard DateTime Format Specifiers"
Console.WriteLine(
    "(d) Short date: . . . . . . . {0:d}\n" +
    "(D) Long date:. . . . . . . . {0:D}\n" +
    "(t) Short time: . . . . . . . {0:t}\n" +
    "(T) Long time:. . . . . . . . {0:T}\n" +
    "(f) Full date/short time: . . {0:f}\n" +
    "(F) Full date/long time:. . . {0:F}\n" +
    "(g) General date/short time:. {0:g}\n" +
    "(G) General date/long time: . {0:G}\n" +
    "    (default):. . . . . . . . {0} (default = 'G')\n" +
    "(M) Month:. . . . . . . . . . {0:M}\n" +
    "(R) RFC1123:. . . . . . . . . {0:R}\n" +
    "(s) Sortable: . . . . . . . . {0:s}\n" +
    "(u) Universal sortable: . . . {0:u} (invariant)\n" +
    "(U) Universal full date/time: {0:U}\n" +
    "(Y) Year: . . . . . . . . . . {0:Y}\n",
    thisDate)

// Format a Color enumeration value in various ways.
Console.WriteLine "Standard Enumeration Format Specifiers"
Console.WriteLine(
    "(G) General:. . . . . . . . . {0:G}\n" +
    "    (default):. . . . . . . . {0} (default = 'G')\n" +
    "(F) Flags:. . . . . . . . . . {0:F} (flags or integer)\n" +
    "(D) Decimal number: . . . . . {0:D}\n" +
    "(X) Hexadecimal:. . . . . . . {0:X}\n",
    Color.Green)


// This code example produces the following results:
//
// Standard Numeric Format Specifiers
// (C) Currency: . . . . . . . . ($123.00)
// (D) Decimal:. . . . . . . . . -123
// (E) Scientific: . . . . . . . -1.234500E+002
// (F) Fixed point:. . . . . . . -123.45
// (G) General:. . . . . . . . . -123
//     (default):. . . . . . . . -123 (default = 'G')
// (N) Number: . . . . . . . . . -123.00
// (P) Percent:. . . . . . . . . -12,345.00 %
// (R) Round-trip: . . . . . . . -123.45
// (X) Hexadecimal:. . . . . . . FFFFFF85
//
// Standard DateTime Format Specifiers
// (d) Short date: . . . . . . . 6/26/2004
// (D) Long date:. . . . . . . . Saturday, June 26, 2004
// (t) Short time: . . . . . . . 8:11 PM
// (T) Long time:. . . . . . . . 8:11:04 PM
// (f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
// (F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
// (g) General date/short time:. 6/26/2004 8:11 PM
// (G) General date/long time: . 6/26/2004 8:11:04 PM
//     (default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
// (M) Month:. . . . . . . . . . June 26
// (R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
// (s) Sortable: . . . . . . . . 2004-06-26T20:11:04
// (u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
// (U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
// (Y) Year: . . . . . . . . . . June, 2004
//
// Standard Enumeration Format Specifiers
// (G) General:. . . . . . . . . Green
//     (default):. . . . . . . . Green (default = 'G')
// (F) Flags:. . . . . . . . . . Green (flags or integer)
// (D) Decimal number: . . . . . 3
// (X) Hexadecimal:. . . . . . . 00000003

' This code example demonstrates the Console.WriteLine() method.
' Formatting for this example uses the "en-US" culture.

Class Sample
   Public Enum Color
      Yellow = 1
      Blue = 2
      Green = 3
   End Enum 'Color
   Private Shared thisDate As DateTime = DateTime.Now
   
   Public Shared Sub Main()
      Console.Clear()

      ' Format a negative integer or floating-point number in various ways.
      Console.WriteLine("Standard Numeric Format Specifiers")
      Console.WriteLine("(C) Currency: . . . . . . . . {0:C}" & vbCrLf & _
                        "(D) Decimal:. . . . . . . . . {0:D}" & vbCrLf & _
                        "(E) Scientific: . . . . . . . {1:E}" & vbCrLf & _
                        "(F) Fixed point:. . . . . . . {1:F}" & vbCrLf & _
                        "(G) General:. . . . . . . . . {0:G}" & vbCrLf & _
                        "    (default):. . . . . . . . {0} (default = 'G')" & vbCrLf & _
                        "(N) Number: . . . . . . . . . {0:N}" & vbCrLf & _
                        "(P) Percent:. . . . . . . . . {1:P}" & vbCrLf & _
                        "(R) Round-trip: . . . . . . . {1:R}" & vbCrLf & _
                        "(X) Hexadecimal:. . . . . . . {0:X}" & vbCrLf, _
                        - 123, - 123.45F)

      ' Format the current date in various ways.
      Console.WriteLine("Standard DateTime Format Specifiers")
      Console.WriteLine("(d) Short date: . . . . . . . {0:d}" & vbCrLf & _
                        "(D) Long date:. . . . . . . . {0:D}" & vbCrLf & _
                        "(t) Short time: . . . . . . . {0:t}" & vbCrLf & _
                        "(T) Long time:. . . . . . . . {0:T}" & vbCrLf & _
                        "(f) Full date/short time: . . {0:f}" & vbCrLf & _
                        "(F) Full date/long time:. . . {0:F}" & vbCrLf & _
                        "(g) General date/short time:. {0:g}" & vbCrLf & _
                        "(G) General date/long time: . {0:G}" & vbCrLf & _
                        "    (default):. . . . . . . . {0} (default = 'G')" & vbCrLf & _
                        "(M) Month:. . . . . . . . . . {0:M}" & vbCrLf & _
                        "(R) RFC1123:. . . . . . . . . {0:R}" & vbCrLf & _
                        "(s) Sortable: . . . . . . . . {0:s}" & vbCrLf & _
                        "(u) Universal sortable: . . . {0:u} (invariant)" & vbCrLf & _
                        "(U) Universal full date/time: {0:U}" & vbCrLf & _
                        "(Y) Year: . . . . . . . . . . {0:Y}" & vbCrLf, _
                        thisDate)

      ' Format a Color enumeration value in various ways.
      Console.WriteLine("Standard Enumeration Format Specifiers")
      Console.WriteLine("(G) General:. . . . . . . . . {0:G}" & vbCrLf & _
                        "    (default):. . . . . . . . {0} (default = 'G')" & vbCrLf & _
                        "(F) Flags:. . . . . . . . . . {0:F} (flags or integer)" & vbCrLf & _
                        "(D) Decimal number: . . . . . {0:D}" & vbCrLf & _
                        "(X) Hexadecimal:. . . . . . . {0:X}" & vbCrLf, _
                        Color.Green)
   End Sub
End Class
'
'This code example produces the following results:
'
'Standard Numeric Format Specifiers
'(C) Currency: . . . . . . . . ($123.00)
'(D) Decimal:. . . . . . . . . -123
'(E) Scientific: . . . . . . . -1.234500E+002
'(F) Fixed point:. . . . . . . -123.45
'(G) General:. . . . . . . . . -123
'    (default):. . . . . . . . -123 (default = 'G')
'(N) Number: . . . . . . . . . -123.00
'(P) Percent:. . . . . . . . . -12,345.00 %
'(R) Round-trip: . . . . . . . -123.45
'(X) Hexadecimal:. . . . . . . FFFFFF85
'
'Standard DateTime Format Specifiers
'(d) Short date: . . . . . . . 6/26/2004
'(D) Long date:. . . . . . . . Saturday, June 26, 2004
'(t) Short time: . . . . . . . 8:11 PM
'(T) Long time:. . . . . . . . 8:11:04 PM
'(f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
'(F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
'(g) General date/short time:. 6/26/2004 8:11 PM
'(G) General date/long time: . 6/26/2004 8:11:04 PM
'    (default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
'(M) Month:. . . . . . . . . . June 26
'(R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
'(s) Sortable: . . . . . . . . 2004-06-26T20:11:04
'(u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
'(U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
'(Y) Year: . . . . . . . . . . June, 2004
'
'Standard Enumeration Format Specifiers
'(G) General:. . . . . . . . . Green
'    (default):. . . . . . . . Green (default = 'G')
'(F) Flags:. . . . . . . . . . Green (flags or integer)
'(D) Decimal number: . . . . . 3
'(X) Hexadecimal:. . . . . . . 00000003
'

下面的示例演示 Write 方法的用法。

int main()
{
   array<String^>^lineInputArr = {"1   2.2   hello	TRUE","2   5.22   bye	FALSE","3   6.38   see ya'	TRUE"};
   for ( Int32 i = 0; i < 3; i++ )
   {
      String^ lineInput = lineInputArr->GetValue( i )->ToString();
      String^ aChar =  "\t";
      array<String^>^fields = lineInput->Split( aChar->ToCharArray() );
      Boolean isFirstField = true;
      for ( Int32 i = 0; i < fields->Length; i++ )
      {
         if ( isFirstField )
                  isFirstField = false;
         else
                  Console::Write( "," );
         
         // If the field represents a boolean, replace with a numeric representation.
         try
         {
            Console::Write( Convert::ToByte( Convert::ToBoolean( fields[ i ] ) ) );
         }
         catch ( FormatException^ ) 
         {
            Console::Write( fields[ i ] );
         }


      }
      Console::WriteLine();

   }
}

public class FormatConverter
{
    public static void Main(string[] args)
    {
        string lineInput;
        while ((lineInput = Console.ReadLine()) != null)
        {
            string[] fields = lineInput.Split(new char[] {'\t'});
            bool isFirstField = true;
            foreach (var item in fields)
            {
                if (isFirstField)
                    isFirstField = false;
                else
                    Console.Write(',');

                // If the field represents a boolean, replace with a numeric representation.
                bool itemBool;
                if (Boolean.TryParse(item, out itemBool))
                    Console.Write(Convert.ToByte(itemBool));
                else
                    Console.Write(item);
            }
            Console.WriteLine();
        }
    }
}

let mutable lineInput = Console.ReadLine()
while lineInput <> null do
    let fields = lineInput.Split '\t'
    let mutable isFirstField = true

    for item in fields do
        if isFirstField then
            isFirstField <- false
        else
            Console.Write ','

        // If the field represents a boolean, replace with a numeric representation.
        match Boolean.TryParse item with 
        | true, itemBool ->
            Console.Write(Convert.ToByte itemBool)
        | _ ->
            Console.Write item
    Console.WriteLine()

Public Class FormatConverter
   Public Shared Sub Main()
      Dim lineInput As String = Console.ReadLine()
      While Not lineInput Is Nothing
         Dim fields As String() = lineInput.Split(ControlChars.Tab)
         Dim isFirstField As Boolean = True
         For Each item As String In fields
            If isFirstField Then
               isFirstField = False
            Else
               Console.Write(",")
            End If
            ' If the field represents a boolean, replace with a numeric representation.
            Dim itemBool As Boolean
            If Boolean.TryParse(item, itemBool)
                Console.Write(Convert.ToByte(itemBool))
            Else
                Console.Write(item)
            End If
         Next
         Console.WriteLine()
         lineInput = Console.ReadLine()
      End While
   End Sub
End Class

注解

此方法使用 .NET 的 复合格式设置功能 将对象的值转换为其文本表示形式，并将该表示形式嵌入字符串中。 生成的字符串将写入输出流。

参数 format 包含与零个或多个索引占位符（称为格式项）混合的零个或多个文本运行，这些占位符对应于此方法的参数列表中的对象。 格式设置过程将每个格式项替换为相应对象值的文本表示形式。

格式项的语法是 {index[,alignment][:formatString]}，它指定强制索引、格式化文本的可选长度和对齐方式，以及控制相应对象值的格式设置方式的格式说明符字符的可选字符串。

.NET 提供广泛的格式设置支持，以下格式设置主题对此进行了更详细的介绍。

• 有关 、 等FormatAppendFormat方法支持的复合格式设置功能的详细信息，以及 的WriteLine一些重载，请参阅复合格式设置。

• 有关数值格式说明符的详细信息，请参阅 标准数值格式字符串 和 自定义数值格式字符串。

• 有关日期和时间格式说明符的详细信息，请参阅 标准日期和时间格式字符串 和 自定义日期和时间格式字符串。

• 有关枚举格式说明符的详细信息，请参阅 枚举格式字符串。

• 有关格式设置的详细信息，请参阅 格式设置类型。

另请参阅

• Read()
• ReadLine()
• WriteLine()
• 设置 .NET 中类型的格式
• 复合格式设置

Source:

Console.cs

Source:

Console.cs

Source:

Console.cs

public:
 static void Write(System::String ^ format, System::Object ^ arg0, System::Object ^ arg1);

public static void Write (string format, object? arg0, object? arg1);

public static void Write (string format, object arg0, object arg1);

static member Write : string * obj * obj -> unit

Public Shared Sub Write (format As String, arg0 As Object, arg1 As Object)

参数

例外

示例

下面的示例使用 WriteLine 方法演示数字、日期和枚举的标准格式说明符。

// This code example demonstrates the Console.WriteLine() method.
// Formatting for this example uses the "en-US" culture.

using namespace System;

public enum class Color {Yellow = 1, Blue, Green};

int main() 
{
    DateTime thisDate = DateTime::Now;
    Console::Clear();

    // Format a negative integer or floating-point number in various ways.
    Console::WriteLine("Standard Numeric Format Specifiers");
    Console::WriteLine(
        "(C) Currency: . . . . . . . . {0:C}\n" +
        "(D) Decimal:. . . . . . . . . {0:D}\n" +
        "(E) Scientific: . . . . . . . {1:E}\n" +
        "(F) Fixed point:. . . . . . . {1:F}\n" +
        "(G) General:. . . . . . . . . {0:G}\n" +
        "    (default):. . . . . . . . {0} (default = 'G')\n" +
        "(N) Number: . . . . . . . . . {0:N}\n" +
        "(P) Percent:. . . . . . . . . {1:P}\n" +
        "(R) Round-trip: . . . . . . . {1:R}\n" +
        "(X) Hexadecimal:. . . . . . . {0:X}\n",
        -123, -123.45f); 

    // Format the current date in various ways.
    Console::WriteLine("Standard DateTime Format Specifiers");
    Console::WriteLine(
        "(d) Short date: . . . . . . . {0:d}\n" +
        "(D) Long date:. . . . . . . . {0:D}\n" +
        "(t) Short time: . . . . . . . {0:t}\n" +
        "(T) Long time:. . . . . . . . {0:T}\n" +
        "(f) Full date/short time: . . {0:f}\n" +
        "(F) Full date/long time:. . . {0:F}\n" +
        "(g) General date/short time:. {0:g}\n" +
        "(G) General date/long time: . {0:G}\n" +
        "    (default):. . . . . . . . {0} (default = 'G')\n" +
        "(M) Month:. . . . . . . . . . {0:M}\n" +
        "(R) RFC1123:. . . . . . . . . {0:R}\n" +
        "(s) Sortable: . . . . . . . . {0:s}\n" +
        "(u) Universal sortable: . . . {0:u} (invariant)\n" +
        "(U) Universal full date/time: {0:U}\n" +
        "(Y) Year: . . . . . . . . . . {0:Y}\n", 
        thisDate);

    // Format a Color enumeration value in various ways.
    Console::WriteLine("Standard Enumeration Format Specifiers");
    Console::WriteLine(
        "(G) General:. . . . . . . . . {0:G}\n" +
        "    (default):. . . . . . . . {0} (default = 'G')\n" +
        "(F) Flags:. . . . . . . . . . {0:F} (flags or integer)\n" +
        "(D) Decimal number: . . . . . {0:D}\n" +
        "(X) Hexadecimal:. . . . . . . {0:X}\n", 
        Color::Green);       

};


/*
This code example produces the following results:

Standard Numeric Format Specifiers
(C) Currency: . . . . . . . . ($123.00)
(D) Decimal:. . . . . . . . . -123
(E) Scientific: . . . . . . . -1.234500E+002
(F) Fixed point:. . . . . . . -123.45
(G) General:. . . . . . . . . -123
(default):. . . . . . . . -123 (default = 'G')
(N) Number: . . . . . . . . . -123.00
(P) Percent:. . . . . . . . . -12,345.00 %
(R) Round-trip: . . . . . . . -123.45
(X) Hexadecimal:. . . . . . . FFFFFF85

Standard DateTime Format Specifiers
(d) Short date: . . . . . . . 6/26/2004
(D) Long date:. . . . . . . . Saturday, June 26, 2004
(t) Short time: . . . . . . . 8:11 PM
(T) Long time:. . . . . . . . 8:11:04 PM
(f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
(F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
(g) General date/short time:. 6/26/2004 8:11 PM
(G) General date/long time: . 6/26/2004 8:11:04 PM
(default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
(M) Month:. . . . . . . . . . June 26
(R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
(s) Sortable: . . . . . . . . 2004-06-26T20:11:04
(u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
(U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
(Y) Year: . . . . . . . . . . June, 2004

Standard Enumeration Format Specifiers
(G) General:. . . . . . . . . Green
(default):. . . . . . . . Green (default = 'G')
(F) Flags:. . . . . . . . . . Green (flags or integer)
(D) Decimal number: . . . . . 3
(X) Hexadecimal:. . . . . . . 00000003

*/

// This code example demonstrates the Console.WriteLine() method.
// Formatting for this example uses the "en-US" culture.

using System;
class Sample
{
    enum Color {Yellow = 1, Blue, Green};
    static DateTime thisDate = DateTime.Now;

    public static void Main()
    {
        Console.Clear();

        // Format a negative integer or floating-point number in various ways.
        Console.WriteLine("Standard Numeric Format Specifiers");
        Console.WriteLine(
            "(C) Currency: . . . . . . . . {0:C}\n" +
            "(D) Decimal:. . . . . . . . . {0:D}\n" +
            "(E) Scientific: . . . . . . . {1:E}\n" +
            "(F) Fixed point:. . . . . . . {1:F}\n" +
            "(G) General:. . . . . . . . . {0:G}\n" +
            "    (default):. . . . . . . . {0} (default = 'G')\n" +
            "(N) Number: . . . . . . . . . {0:N}\n" +
            "(P) Percent:. . . . . . . . . {1:P}\n" +
            "(R) Round-trip: . . . . . . . {1:R}\n" +
            "(X) Hexadecimal:. . . . . . . {0:X}\n",
            -123, -123.45f);

        // Format the current date in various ways.
        Console.WriteLine("Standard DateTime Format Specifiers");
        Console.WriteLine(
            "(d) Short date: . . . . . . . {0:d}\n" +
            "(D) Long date:. . . . . . . . {0:D}\n" +
            "(t) Short time: . . . . . . . {0:t}\n" +
            "(T) Long time:. . . . . . . . {0:T}\n" +
            "(f) Full date/short time: . . {0:f}\n" +
            "(F) Full date/long time:. . . {0:F}\n" +
            "(g) General date/short time:. {0:g}\n" +
            "(G) General date/long time: . {0:G}\n" +
            "    (default):. . . . . . . . {0} (default = 'G')\n" +
            "(M) Month:. . . . . . . . . . {0:M}\n" +
            "(R) RFC1123:. . . . . . . . . {0:R}\n" +
            "(s) Sortable: . . . . . . . . {0:s}\n" +
            "(u) Universal sortable: . . . {0:u} (invariant)\n" +
            "(U) Universal full date/time: {0:U}\n" +
            "(Y) Year: . . . . . . . . . . {0:Y}\n",
            thisDate);

        // Format a Color enumeration value in various ways.
        Console.WriteLine("Standard Enumeration Format Specifiers");
        Console.WriteLine(
            "(G) General:. . . . . . . . . {0:G}\n" +
            "    (default):. . . . . . . . {0} (default = 'G')\n" +
            "(F) Flags:. . . . . . . . . . {0:F} (flags or integer)\n" +
            "(D) Decimal number: . . . . . {0:D}\n" +
            "(X) Hexadecimal:. . . . . . . {0:X}\n",
            Color.Green);
    }
}
/*
This code example produces the following results:

Standard Numeric Format Specifiers
(C) Currency: . . . . . . . . ($123.00)
(D) Decimal:. . . . . . . . . -123
(E) Scientific: . . . . . . . -1.234500E+002
(F) Fixed point:. . . . . . . -123.45
(G) General:. . . . . . . . . -123
    (default):. . . . . . . . -123 (default = 'G')
(N) Number: . . . . . . . . . -123.00
(P) Percent:. . . . . . . . . -12,345.00 %
(R) Round-trip: . . . . . . . -123.45
(X) Hexadecimal:. . . . . . . FFFFFF85

Standard DateTime Format Specifiers
(d) Short date: . . . . . . . 6/26/2004
(D) Long date:. . . . . . . . Saturday, June 26, 2004
(t) Short time: . . . . . . . 8:11 PM
(T) Long time:. . . . . . . . 8:11:04 PM
(f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
(F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
(g) General date/short time:. 6/26/2004 8:11 PM
(G) General date/long time: . 6/26/2004 8:11:04 PM
    (default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
(M) Month:. . . . . . . . . . June 26
(R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
(s) Sortable: . . . . . . . . 2004-06-26T20:11:04
(u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
(U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
(Y) Year: . . . . . . . . . . June, 2004

Standard Enumeration Format Specifiers
(G) General:. . . . . . . . . Green
    (default):. . . . . . . . Green (default = 'G')
(F) Flags:. . . . . . . . . . Green (flags or integer)
(D) Decimal number: . . . . . 3
(X) Hexadecimal:. . . . . . . 00000003

*/

// This code example demonstrates the Console.WriteLine() method.
// Formatting for this example uses the "en-US" culture.

open System

type Color = 
    | Yellow = 1
    | Blue = 2
    | Green = 3

let thisDate = DateTime.Now

Console.Clear()

// Format a negative integer or floating-point number in various ways.
Console.WriteLine "Standard Numeric Format Specifiers"
Console.WriteLine(
    "(C) Currency: . . . . . . . . {0:C}\n" +
    "(D) Decimal:. . . . . . . . . {0:D}\n" +
    "(E) Scientific: . . . . . . . {1:E}\n" +
    "(F) Fixed point:. . . . . . . {1:F}\n" +
    "(G) General:. . . . . . . . . {0:G}\n" +
    "    (default):. . . . . . . . {0} (default = 'G')\n" +
    "(N) Number: . . . . . . . . . {0:N}\n" +
    "(P) Percent:. . . . . . . . . {1:P}\n" +
    "(R) Round-trip: . . . . . . . {1:R}\n" +
    "(X) Hexadecimal:. . . . . . . {0:X}\n",
    -123, -123.45f)

// Format the current date in various ways.
Console.WriteLine "Standard DateTime Format Specifiers"
Console.WriteLine(
    "(d) Short date: . . . . . . . {0:d}\n" +
    "(D) Long date:. . . . . . . . {0:D}\n" +
    "(t) Short time: . . . . . . . {0:t}\n" +
    "(T) Long time:. . . . . . . . {0:T}\n" +
    "(f) Full date/short time: . . {0:f}\n" +
    "(F) Full date/long time:. . . {0:F}\n" +
    "(g) General date/short time:. {0:g}\n" +
    "(G) General date/long time: . {0:G}\n" +
    "    (default):. . . . . . . . {0} (default = 'G')\n" +
    "(M) Month:. . . . . . . . . . {0:M}\n" +
    "(R) RFC1123:. . . . . . . . . {0:R}\n" +
    "(s) Sortable: . . . . . . . . {0:s}\n" +
    "(u) Universal sortable: . . . {0:u} (invariant)\n" +
    "(U) Universal full date/time: {0:U}\n" +
    "(Y) Year: . . . . . . . . . . {0:Y}\n",
    thisDate)

// Format a Color enumeration value in various ways.
Console.WriteLine "Standard Enumeration Format Specifiers"
Console.WriteLine(
    "(G) General:. . . . . . . . . {0:G}\n" +
    "    (default):. . . . . . . . {0} (default = 'G')\n" +
    "(F) Flags:. . . . . . . . . . {0:F} (flags or integer)\n" +
    "(D) Decimal number: . . . . . {0:D}\n" +
    "(X) Hexadecimal:. . . . . . . {0:X}\n",
    Color.Green)


// This code example produces the following results:
//
// Standard Numeric Format Specifiers
// (C) Currency: . . . . . . . . ($123.00)
// (D) Decimal:. . . . . . . . . -123
// (E) Scientific: . . . . . . . -1.234500E+002
// (F) Fixed point:. . . . . . . -123.45
// (G) General:. . . . . . . . . -123
//     (default):. . . . . . . . -123 (default = 'G')
// (N) Number: . . . . . . . . . -123.00
// (P) Percent:. . . . . . . . . -12,345.00 %
// (R) Round-trip: . . . . . . . -123.45
// (X) Hexadecimal:. . . . . . . FFFFFF85
//
// Standard DateTime Format Specifiers
// (d) Short date: . . . . . . . 6/26/2004
// (D) Long date:. . . . . . . . Saturday, June 26, 2004
// (t) Short time: . . . . . . . 8:11 PM
// (T) Long time:. . . . . . . . 8:11:04 PM
// (f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
// (F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
// (g) General date/short time:. 6/26/2004 8:11 PM
// (G) General date/long time: . 6/26/2004 8:11:04 PM
//     (default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
// (M) Month:. . . . . . . . . . June 26
// (R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
// (s) Sortable: . . . . . . . . 2004-06-26T20:11:04
// (u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
// (U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
// (Y) Year: . . . . . . . . . . June, 2004
//
// Standard Enumeration Format Specifiers
// (G) General:. . . . . . . . . Green
//     (default):. . . . . . . . Green (default = 'G')
// (F) Flags:. . . . . . . . . . Green (flags or integer)
// (D) Decimal number: . . . . . 3
// (X) Hexadecimal:. . . . . . . 00000003

' This code example demonstrates the Console.WriteLine() method.
' Formatting for this example uses the "en-US" culture.

Class Sample
   Public Enum Color
      Yellow = 1
      Blue = 2
      Green = 3
   End Enum 'Color
   Private Shared thisDate As DateTime = DateTime.Now
   
   Public Shared Sub Main()
      Console.Clear()

      ' Format a negative integer or floating-point number in various ways.
      Console.WriteLine("Standard Numeric Format Specifiers")
      Console.WriteLine("(C) Currency: . . . . . . . . {0:C}" & vbCrLf & _
                        "(D) Decimal:. . . . . . . . . {0:D}" & vbCrLf & _
                        "(E) Scientific: . . . . . . . {1:E}" & vbCrLf & _
                        "(F) Fixed point:. . . . . . . {1:F}" & vbCrLf & _
                        "(G) General:. . . . . . . . . {0:G}" & vbCrLf & _
                        "    (default):. . . . . . . . {0} (default = 'G')" & vbCrLf & _
                        "(N) Number: . . . . . . . . . {0:N}" & vbCrLf & _
                        "(P) Percent:. . . . . . . . . {1:P}" & vbCrLf & _
                        "(R) Round-trip: . . . . . . . {1:R}" & vbCrLf & _
                        "(X) Hexadecimal:. . . . . . . {0:X}" & vbCrLf, _
                        - 123, - 123.45F)

      ' Format the current date in various ways.
      Console.WriteLine("Standard DateTime Format Specifiers")
      Console.WriteLine("(d) Short date: . . . . . . . {0:d}" & vbCrLf & _
                        "(D) Long date:. . . . . . . . {0:D}" & vbCrLf & _
                        "(t) Short time: . . . . . . . {0:t}" & vbCrLf & _
                        "(T) Long time:. . . . . . . . {0:T}" & vbCrLf & _
                        "(f) Full date/short time: . . {0:f}" & vbCrLf & _
                        "(F) Full date/long time:. . . {0:F}" & vbCrLf & _
                        "(g) General date/short time:. {0:g}" & vbCrLf & _
                        "(G) General date/long time: . {0:G}" & vbCrLf & _
                        "    (default):. . . . . . . . {0} (default = 'G')" & vbCrLf & _
                        "(M) Month:. . . . . . . . . . {0:M}" & vbCrLf & _
                        "(R) RFC1123:. . . . . . . . . {0:R}" & vbCrLf & _
                        "(s) Sortable: . . . . . . . . {0:s}" & vbCrLf & _
                        "(u) Universal sortable: . . . {0:u} (invariant)" & vbCrLf & _
                        "(U) Universal full date/time: {0:U}" & vbCrLf & _
                        "(Y) Year: . . . . . . . . . . {0:Y}" & vbCrLf, _
                        thisDate)

      ' Format a Color enumeration value in various ways.
      Console.WriteLine("Standard Enumeration Format Specifiers")
      Console.WriteLine("(G) General:. . . . . . . . . {0:G}" & vbCrLf & _
                        "    (default):. . . . . . . . {0} (default = 'G')" & vbCrLf & _
                        "(F) Flags:. . . . . . . . . . {0:F} (flags or integer)" & vbCrLf & _
                        "(D) Decimal number: . . . . . {0:D}" & vbCrLf & _
                        "(X) Hexadecimal:. . . . . . . {0:X}" & vbCrLf, _
                        Color.Green)
   End Sub
End Class
'
'This code example produces the following results:
'
'Standard Numeric Format Specifiers
'(C) Currency: . . . . . . . . ($123.00)
'(D) Decimal:. . . . . . . . . -123
'(E) Scientific: . . . . . . . -1.234500E+002
'(F) Fixed point:. . . . . . . -123.45
'(G) General:. . . . . . . . . -123
'    (default):. . . . . . . . -123 (default = 'G')
'(N) Number: . . . . . . . . . -123.00
'(P) Percent:. . . . . . . . . -12,345.00 %
'(R) Round-trip: . . . . . . . -123.45
'(X) Hexadecimal:. . . . . . . FFFFFF85
'
'Standard DateTime Format Specifiers
'(d) Short date: . . . . . . . 6/26/2004
'(D) Long date:. . . . . . . . Saturday, June 26, 2004
'(t) Short time: . . . . . . . 8:11 PM
'(T) Long time:. . . . . . . . 8:11:04 PM
'(f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
'(F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
'(g) General date/short time:. 6/26/2004 8:11 PM
'(G) General date/long time: . 6/26/2004 8:11:04 PM
'    (default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
'(M) Month:. . . . . . . . . . June 26
'(R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
'(s) Sortable: . . . . . . . . 2004-06-26T20:11:04
'(u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
'(U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
'(Y) Year: . . . . . . . . . . June, 2004
'
'Standard Enumeration Format Specifiers
'(G) General:. . . . . . . . . Green
'    (default):. . . . . . . . Green (default = 'G')
'(F) Flags:. . . . . . . . . . Green (flags or integer)
'(D) Decimal number: . . . . . 3
'(X) Hexadecimal:. . . . . . . 00000003
'

下面的示例演示 Write 方法的用法。

int main()
{
   array<String^>^lineInputArr = {"1   2.2   hello	TRUE","2   5.22   bye	FALSE","3   6.38   see ya'	TRUE"};
   for ( Int32 i = 0; i < 3; i++ )
   {
      String^ lineInput = lineInputArr->GetValue( i )->ToString();
      String^ aChar =  "\t";
      array<String^>^fields = lineInput->Split( aChar->ToCharArray() );
      Boolean isFirstField = true;
      for ( Int32 i = 0; i < fields->Length; i++ )
      {
         if ( isFirstField )
                  isFirstField = false;
         else
                  Console::Write( "," );
         
         // If the field represents a boolean, replace with a numeric representation.
         try
         {
            Console::Write( Convert::ToByte( Convert::ToBoolean( fields[ i ] ) ) );
         }
         catch ( FormatException^ ) 
         {
            Console::Write( fields[ i ] );
         }


      }
      Console::WriteLine();

   }
}

public class FormatConverter
{
    public static void Main(string[] args)
    {
        string lineInput;
        while ((lineInput = Console.ReadLine()) != null)
        {
            string[] fields = lineInput.Split(new char[] {'\t'});
            bool isFirstField = true;
            foreach (var item in fields)
            {
                if (isFirstField)
                    isFirstField = false;
                else
                    Console.Write(',');

                // If the field represents a boolean, replace with a numeric representation.
                bool itemBool;
                if (Boolean.TryParse(item, out itemBool))
                    Console.Write(Convert.ToByte(itemBool));
                else
                    Console.Write(item);
            }
            Console.WriteLine();
        }
    }
}

let mutable lineInput = Console.ReadLine()
while lineInput <> null do
    let fields = lineInput.Split '\t'
    let mutable isFirstField = true

    for item in fields do
        if isFirstField then
            isFirstField <- false
        else
            Console.Write ','

        // If the field represents a boolean, replace with a numeric representation.
        match Boolean.TryParse item with 
        | true, itemBool ->
            Console.Write(Convert.ToByte itemBool)
        | _ ->
            Console.Write item
    Console.WriteLine()

Public Class FormatConverter
   Public Shared Sub Main()
      Dim lineInput As String = Console.ReadLine()
      While Not lineInput Is Nothing
         Dim fields As String() = lineInput.Split(ControlChars.Tab)
         Dim isFirstField As Boolean = True
         For Each item As String In fields
            If isFirstField Then
               isFirstField = False
            Else
               Console.Write(",")
            End If
            ' If the field represents a boolean, replace with a numeric representation.
            Dim itemBool As Boolean
            If Boolean.TryParse(item, itemBool)
                Console.Write(Convert.ToByte(itemBool))
            Else
                Console.Write(item)
            End If
         Next
         Console.WriteLine()
         lineInput = Console.ReadLine()
      End While
   End Sub
End Class

注解

此方法使用 .NET 的 复合格式设置功能 将对象的值转换为其文本表示形式，并将该表示形式嵌入字符串中。 生成的字符串将写入输出流。

参数 format 包含与零个或多个索引占位符（称为格式项）混合的零个或多个文本运行，这些占位符对应于此方法的参数列表中的对象。 格式设置过程将每个格式项替换为相应对象的值的文本表示形式。

格式项的语法是 {index[,alignment][:formatString]}，它指定强制索引、格式化文本的可选长度和对齐方式，以及控制相应对象值的格式设置方式的可选格式说明符字符串。

.NET 提供广泛的格式设置支持，以下格式设置主题对此进行了更详细的介绍。

• 有关 、 等FormatAppendFormat方法支持的复合格式设置功能的详细信息，以及 的WriteLine一些重载，请参阅复合格式设置。

• 有关数字格式说明符的详细信息，请参阅 标准数字格式字符串 和 自定义数值格式字符串。

• 有关日期和时间格式说明符的详细信息，请参阅 标准日期和时间格式字符串 和 自定义日期和时间格式字符串。

• 有关枚举格式说明符的详细信息，请参阅 枚举格式字符串。

• 有关格式设置的详细信息，请参阅 格式设置类型。

另请参阅

• Read()
• ReadLine()
• WriteLine()
• 设置 .NET 中类型的格式
• 复合格式设置

Source:

Console.cs

Source:

Console.cs

Source:

Console.cs

public:
 static void Write(System::String ^ format, ... cli::array <System::Object ^> ^ arg);

public static void Write (string format, params object?[]? arg);

public static void Write (string format, params object[] arg);

static member Write : string * obj[] -> unit

Public Shared Sub Write (format As String, ParamArray arg As Object())

参数

例外

示例

以下示例定义一个 Person 类，该类具有多个属性，这些属性提供有关人员的信息。 其 GetDescription 方法返回一个数组，该数组包含除一个属性值之外的所有属性值。 然后，该示例使用 方法返回 GetDescription 的数组来显示 Person 对象的值。

using System;

public class Person
{
   public String Name { get; set; }
   public DateTime BirthDate  { get; set; }
   public Double Height { get; set; }
   public Double Weight { get; set; }
   public Char Gender { get; set; }
   public String Remarks { get; set; }

   public object[] GetDescription()
   {
      return new object[] { Name, Gender, Height, Weight, BirthDate};
   }
}

public class Example
{
   public static void Main()
   {
      var p1 = new Person() { Name = "John", Gender = 'M',
                              BirthDate = new DateTime(1992, 5, 10),
                              Height = 73.5, Weight = 207 };
      p1.Remarks = "Client since 1/3/2012";
      Console.Write("{0}: {1}, born {4:d}  Height {2} inches, Weight {3} lbs  ",
                    p1.GetDescription());
      if (String.IsNullOrEmpty(p1.Remarks))
         Console.WriteLine();
      else
         Console.WriteLine("{1}Remarks: {0}", p1.Remarks,
                           Console.CursorLeft + p1.Remarks.Length + 10 > Console.WindowWidth ?
                              "\n   " : "");
   }
}
// The example displays the following output:
//    John: M, born 5/10/1992  Height 73.5 inches, Weight 207 lbs  Remarks: Client since 1/3/2012

open System

type Person =
    { Name: string
      BirthDate: DateOnly
      Height: double
      Weight: double
      Gender: char
      Remarks: string }

    member this.GetDescription(): obj [] =
        [| this.Name; this.Gender; this.Height; this.Weight; this.BirthDate |]

let p1 = 
    { Name = "John"
      Gender = 'M'
      BirthDate = DateOnly(1992, 5, 10)
      Height = 73.5
      Weight = 207
      Remarks = "Client since 1/3/2012" }

Console.Write("{0}: {1}, born {4:d}  Height {2} inches, Weight {3} lbs  ", p1.GetDescription())

if String.IsNullOrEmpty p1.Remarks then
    Console.WriteLine()
else
    Console.WriteLine $"""{if Console.CursorLeft + p1.Remarks.Length + 10 > Console.WindowWidth then "\n   " else ""}Remarks: {p1.Remarks}"""


// The example displays the following output:
//    John: M, born 5/10/1992  Height 73.5 inches, Weight 207 lbs  Remarks: Client since 1/3/2012

Public Class Person
   Public Property Name As String
   Public Property BirthDate As DateTime
   Public Property Height As Double
   Public Property Weight As Double
   Public Property Gender As Char
   Public Property Remarks As String
   
   Public Function GetDescription() As Object()
      Return { Name, Gender, Height, Weight, BirthDate}
   End Function
End Class

Module Example
   Public Sub Main()
      Dim p1 As New Person() With { .Name = "John", .Gender = "M"c,
                                    .BirthDate = New DateTime(1992, 5, 10), 
                                    .Height = 73.5, .Weight = 207 }
      p1.Remarks = "Client since 1/3/2012"
      Console.Write("{0}: {1}, born {4:d}  Height {2} inches, Weight {3} lbs  ", 
                    p1.GetDescription())
      If String.IsNullOrEmpty(p1.Remarks) Then
         Console.WriteLine()
      Else
         Console.WriteLine("{1}Remarks: {0}", p1.Remarks,
                           If(Console.CursorLeft + p1.Remarks.Length + 10 > Console.WindowWidth,
                              vbCrLf + "   ", ""))
      End If   
   End Sub
End Module
' The example displays the following output:
'   John: M, born 5/10/1992  Height 73.5 inches, Weight 207 lbs  Remarks: Client since 1/3/2012

请注意，该示例调用 Write(String, Object[]) 方法而不是 方法， WriteLine(String, Object[]) 因为它尝试在同一行上显示 属性的值 Person.Remarks 。 为此，它会检查 和 WindowWidth 属性的值CursorLeft，以确定是否有足够的空间来适应注释。 如果存在，则显示线条。 如果没有，它将写入一行，缩进三个空格，并显示备注。

下面的示例与第一个示例相同，只不过它提供一个包含五项的列表作为 arg 参数而不是参数数组。

using System;

public class Person
{
   public String Name { get; set; }
   public DateTime BirthDate  { get; set; }
   public Double Height { get; set; }
   public Double Weight { get; set; }
   public Char Gender { get; set; }
   public String Remarks { get; set; }

   public object[] GetDescription()
   {
      return new object[] { Name, Gender, Height, Weight, BirthDate};
   }
}

public class Example
{
   public static void Main()
   {
      var p1 = new Person() { Name = "John", Gender = 'M',
                              BirthDate = new DateTime(1992, 5, 10),
                              Height = 73.5, Weight = 207 };
      p1.Remarks = "Client since 1/3/2012";
      Console.Write("{0}: {1}, born {2:d}  Height {3} inches, Weight {4} lbs  ",
                    p1.Name, p1.Gender, p1.BirthDate, p1.Height, p1.Weight);
      if (String.IsNullOrEmpty(p1.Remarks))
         Console.WriteLine();
      else
         Console.WriteLine("{1}Remarks: {0}", p1.Remarks,
                           Console.CursorLeft + p1.Remarks.Length + 10 > Console.WindowWidth ?
                              "\n   " : "");
   }
}
// The example displays the following output:
//    John: M, born 5/10/1992  Height 73.5 inches, Weight 207 lbs  Remarks: Client since 1/3/2012

open System

type Person =
    { Name: string
      BirthDate: DateOnly
      Height: double
      Weight: double
      Gender: char
      Remarks: string }

    member this.GetDescription(): obj [] =
        [| this.Name; this.Gender; this.Height; this.Weight; this.BirthDate |]

let p1 = 
    { Name = "John"
      Gender = 'M'
      BirthDate = DateOnly(1992, 5, 10)
      Height = 73.5
      Weight = 207 
      Remarks = "Client since 1/3/2012" }

printf $"{p1.Name}: {p1.Gender}, born {p1.BirthDate:d}  Height {p1.Height} inches, Weight {p1.Weight} lbs  "
if String.IsNullOrEmpty p1.Remarks then
    Console.WriteLine()
else
    Console.WriteLine $"""{if Console.CursorLeft + p1.Remarks.Length + 10 > Console.WindowWidth then "\n   " else ""}Remarks: {p1.Remarks}"""


// The example displays the following output:
//    John: M, born 5/10/1992  Height 73.5 inches, Weight 207 lbs  Remarks: Client since 1/3/2012

Public Class Person
   Public Property Name As String
   Public Property BirthDate As DateTime
   Public Property Height As Double
   Public Property Weight As Double
   Public Property Gender As Char
   Public Property Remarks As String
   
   Public Function GetDescription() As Object()
      Return { Name, Gender, Height, Weight, BirthDate}
   End Function
End Class

Module Example
   Public Sub Main()
      Dim p1 As New Person() With { .Name = "John", .Gender = "M"c,
                                    .BirthDate = New DateTime(1992, 5, 10), 
                                    .Height = 73.5, .Weight = 207 }
      p1.Remarks = "Client since 1/3/2012"
      Console.Write("{0}: {1}, born {2:d}  Height {3} inches, Weight {4} lbs  ", 
                    p1.Name, p1.Gender, p1.BirthDate, p1.Height, p1.Weight)
      If String.IsNullOrEmpty(p1.Remarks) Then
         Console.WriteLine()
      Else
         Console.WriteLine("{1}Remarks: {0}", p1.Remarks,
                           If(Console.CursorLeft + p1.Remarks.Length + 10 > Console.WindowWidth,
                              vbCrLf + "   ", ""))
      End If   
   End Sub
End Module
' The example displays the following output:
'   John: M, born 5/10/1992  Height 73.5 inches, Weight 207 lbs  Remarks: Client since 1/3/2012

注解

此方法使用 .NET 的 复合格式设置功能 将对象的值转换为其文本表示形式，并将该表示形式嵌入字符串中。 生成的字符串将写入输出流。

参数 format 包含与零个或多个索引占位符（称为格式项）混合的零个或多个文本运行，这些占位符对应于此方法的参数列表中的对象。 格式设置过程将每个格式项替换为相应对象的值的文本表示形式。

格式项的语法是 {index[,alignment][:formatString]}，它指定强制索引、格式化文本的可选长度和对齐方式，以及控制相应对象值的格式设置方式的可选格式说明符字符串。

.NET 提供广泛的格式设置支持，以下格式设置主题对此进行了更详细的介绍。

• 有关 、 等FormatAppendFormat方法支持的复合格式设置功能的详细信息，以及 的WriteLine一些重载，请参阅复合格式设置。

• 有关数字格式说明符的详细信息，请参阅 标准数字格式字符串 和 自定义数值格式字符串。

• 有关日期和时间格式说明符的详细信息，请参阅 标准日期和时间格式字符串 和 自定义日期和时间格式字符串。

• 有关枚举格式说明符的详细信息，请参阅 枚举格式字符串。

• 有关格式设置的详细信息，请参阅 格式设置类型。

参数 arg 是参数数组。 可以将参数作为数组或五个或更多项的列表传递给方法。 这些示例说明了这两种方法调用形式。

调用方说明

此方法不是由 C++ 代码调用的。 C++ 编译器解析对 System.Console.Write 的 调用，其中包含一个字符串和一个包含四个或更多个对象参数的列表，作为对 的 Write(String, Object, Object, Object, Object)调用。 它解析对 System.Console.Write 的 调用，其中包括字符串和对象数组，作为对 的 Write(String, Object)调用。

另请参阅

• Read()
• ReadLine()
• WriteLine()
• 设置 .NET 中类型的格式
• 复合格式设置

Source:

Console.cs

Source:

Console.cs

Source:

Console.cs

public:
 static void Write(System::String ^ format, System::Object ^ arg0);

public static void Write (string format, object? arg0);

public static void Write (string format, object arg0);

static member Write : string * obj -> unit

Public Shared Sub Write (format As String, arg0 As Object)

参数

例外

示例

下面的示例使用 WriteLine 方法演示数字、日期和枚举的标准格式说明符。

// This code example demonstrates the Console.WriteLine() method.
// Formatting for this example uses the "en-US" culture.

using namespace System;

public enum class Color {Yellow = 1, Blue, Green};

int main() 
{
    DateTime thisDate = DateTime::Now;
    Console::Clear();

    // Format a negative integer or floating-point number in various ways.
    Console::WriteLine("Standard Numeric Format Specifiers");
    Console::WriteLine(
        "(C) Currency: . . . . . . . . {0:C}\n" +
        "(D) Decimal:. . . . . . . . . {0:D}\n" +
        "(E) Scientific: . . . . . . . {1:E}\n" +
        "(F) Fixed point:. . . . . . . {1:F}\n" +
        "(G) General:. . . . . . . . . {0:G}\n" +
        "    (default):. . . . . . . . {0} (default = 'G')\n" +
        "(N) Number: . . . . . . . . . {0:N}\n" +
        "(P) Percent:. . . . . . . . . {1:P}\n" +
        "(R) Round-trip: . . . . . . . {1:R}\n" +
        "(X) Hexadecimal:. . . . . . . {0:X}\n",
        -123, -123.45f); 

    // Format the current date in various ways.
    Console::WriteLine("Standard DateTime Format Specifiers");
    Console::WriteLine(
        "(d) Short date: . . . . . . . {0:d}\n" +
        "(D) Long date:. . . . . . . . {0:D}\n" +
        "(t) Short time: . . . . . . . {0:t}\n" +
        "(T) Long time:. . . . . . . . {0:T}\n" +
        "(f) Full date/short time: . . {0:f}\n" +
        "(F) Full date/long time:. . . {0:F}\n" +
        "(g) General date/short time:. {0:g}\n" +
        "(G) General date/long time: . {0:G}\n" +
        "    (default):. . . . . . . . {0} (default = 'G')\n" +
        "(M) Month:. . . . . . . . . . {0:M}\n" +
        "(R) RFC1123:. . . . . . . . . {0:R}\n" +
        "(s) Sortable: . . . . . . . . {0:s}\n" +
        "(u) Universal sortable: . . . {0:u} (invariant)\n" +
        "(U) Universal full date/time: {0:U}\n" +
        "(Y) Year: . . . . . . . . . . {0:Y}\n", 
        thisDate);

    // Format a Color enumeration value in various ways.
    Console::WriteLine("Standard Enumeration Format Specifiers");
    Console::WriteLine(
        "(G) General:. . . . . . . . . {0:G}\n" +
        "    (default):. . . . . . . . {0} (default = 'G')\n" +
        "(F) Flags:. . . . . . . . . . {0:F} (flags or integer)\n" +
        "(D) Decimal number: . . . . . {0:D}\n" +
        "(X) Hexadecimal:. . . . . . . {0:X}\n", 
        Color::Green);       

};


/*
This code example produces the following results:

Standard Numeric Format Specifiers
(C) Currency: . . . . . . . . ($123.00)
(D) Decimal:. . . . . . . . . -123
(E) Scientific: . . . . . . . -1.234500E+002
(F) Fixed point:. . . . . . . -123.45
(G) General:. . . . . . . . . -123
(default):. . . . . . . . -123 (default = 'G')
(N) Number: . . . . . . . . . -123.00
(P) Percent:. . . . . . . . . -12,345.00 %
(R) Round-trip: . . . . . . . -123.45
(X) Hexadecimal:. . . . . . . FFFFFF85

Standard DateTime Format Specifiers
(d) Short date: . . . . . . . 6/26/2004
(D) Long date:. . . . . . . . Saturday, June 26, 2004
(t) Short time: . . . . . . . 8:11 PM
(T) Long time:. . . . . . . . 8:11:04 PM
(f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
(F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
(g) General date/short time:. 6/26/2004 8:11 PM
(G) General date/long time: . 6/26/2004 8:11:04 PM
(default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
(M) Month:. . . . . . . . . . June 26
(R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
(s) Sortable: . . . . . . . . 2004-06-26T20:11:04
(u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
(U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
(Y) Year: . . . . . . . . . . June, 2004

Standard Enumeration Format Specifiers
(G) General:. . . . . . . . . Green
(default):. . . . . . . . Green (default = 'G')
(F) Flags:. . . . . . . . . . Green (flags or integer)
(D) Decimal number: . . . . . 3
(X) Hexadecimal:. . . . . . . 00000003

*/

// This code example demonstrates the Console.WriteLine() method.
// Formatting for this example uses the "en-US" culture.

using System;
class Sample
{
    enum Color {Yellow = 1, Blue, Green};
    static DateTime thisDate = DateTime.Now;

    public static void Main()
    {
        Console.Clear();

        // Format a negative integer or floating-point number in various ways.
        Console.WriteLine("Standard Numeric Format Specifiers");
        Console.WriteLine(
            "(C) Currency: . . . . . . . . {0:C}\n" +
            "(D) Decimal:. . . . . . . . . {0:D}\n" +
            "(E) Scientific: . . . . . . . {1:E}\n" +
            "(F) Fixed point:. . . . . . . {1:F}\n" +
            "(G) General:. . . . . . . . . {0:G}\n" +
            "    (default):. . . . . . . . {0} (default = 'G')\n" +
            "(N) Number: . . . . . . . . . {0:N}\n" +
            "(P) Percent:. . . . . . . . . {1:P}\n" +
            "(R) Round-trip: . . . . . . . {1:R}\n" +
            "(X) Hexadecimal:. . . . . . . {0:X}\n",
            -123, -123.45f);

        // Format the current date in various ways.
        Console.WriteLine("Standard DateTime Format Specifiers");
        Console.WriteLine(
            "(d) Short date: . . . . . . . {0:d}\n" +
            "(D) Long date:. . . . . . . . {0:D}\n" +
            "(t) Short time: . . . . . . . {0:t}\n" +
            "(T) Long time:. . . . . . . . {0:T}\n" +
            "(f) Full date/short time: . . {0:f}\n" +
            "(F) Full date/long time:. . . {0:F}\n" +
            "(g) General date/short time:. {0:g}\n" +
            "(G) General date/long time: . {0:G}\n" +
            "    (default):. . . . . . . . {0} (default = 'G')\n" +
            "(M) Month:. . . . . . . . . . {0:M}\n" +
            "(R) RFC1123:. . . . . . . . . {0:R}\n" +
            "(s) Sortable: . . . . . . . . {0:s}\n" +
            "(u) Universal sortable: . . . {0:u} (invariant)\n" +
            "(U) Universal full date/time: {0:U}\n" +
            "(Y) Year: . . . . . . . . . . {0:Y}\n",
            thisDate);

        // Format a Color enumeration value in various ways.
        Console.WriteLine("Standard Enumeration Format Specifiers");
        Console.WriteLine(
            "(G) General:. . . . . . . . . {0:G}\n" +
            "    (default):. . . . . . . . {0} (default = 'G')\n" +
            "(F) Flags:. . . . . . . . . . {0:F} (flags or integer)\n" +
            "(D) Decimal number: . . . . . {0:D}\n" +
            "(X) Hexadecimal:. . . . . . . {0:X}\n",
            Color.Green);
    }
}
/*
This code example produces the following results:

Standard Numeric Format Specifiers
(C) Currency: . . . . . . . . ($123.00)
(D) Decimal:. . . . . . . . . -123
(E) Scientific: . . . . . . . -1.234500E+002
(F) Fixed point:. . . . . . . -123.45
(G) General:. . . . . . . . . -123
    (default):. . . . . . . . -123 (default = 'G')
(N) Number: . . . . . . . . . -123.00
(P) Percent:. . . . . . . . . -12,345.00 %
(R) Round-trip: . . . . . . . -123.45
(X) Hexadecimal:. . . . . . . FFFFFF85

Standard DateTime Format Specifiers
(d) Short date: . . . . . . . 6/26/2004
(D) Long date:. . . . . . . . Saturday, June 26, 2004
(t) Short time: . . . . . . . 8:11 PM
(T) Long time:. . . . . . . . 8:11:04 PM
(f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
(F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
(g) General date/short time:. 6/26/2004 8:11 PM
(G) General date/long time: . 6/26/2004 8:11:04 PM
    (default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
(M) Month:. . . . . . . . . . June 26
(R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
(s) Sortable: . . . . . . . . 2004-06-26T20:11:04
(u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
(U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
(Y) Year: . . . . . . . . . . June, 2004

Standard Enumeration Format Specifiers
(G) General:. . . . . . . . . Green
    (default):. . . . . . . . Green (default = 'G')
(F) Flags:. . . . . . . . . . Green (flags or integer)
(D) Decimal number: . . . . . 3
(X) Hexadecimal:. . . . . . . 00000003

*/

// This code example demonstrates the Console.WriteLine() method.
// Formatting for this example uses the "en-US" culture.

open System

type Color = 
    | Yellow = 1
    | Blue = 2
    | Green = 3

let thisDate = DateTime.Now

Console.Clear()

// Format a negative integer or floating-point number in various ways.
Console.WriteLine "Standard Numeric Format Specifiers"
Console.WriteLine(
    "(C) Currency: . . . . . . . . {0:C}\n" +
    "(D) Decimal:. . . . . . . . . {0:D}\n" +
    "(E) Scientific: . . . . . . . {1:E}\n" +
    "(F) Fixed point:. . . . . . . {1:F}\n" +
    "(G) General:. . . . . . . . . {0:G}\n" +
    "    (default):. . . . . . . . {0} (default = 'G')\n" +
    "(N) Number: . . . . . . . . . {0:N}\n" +
    "(P) Percent:. . . . . . . . . {1:P}\n" +
    "(R) Round-trip: . . . . . . . {1:R}\n" +
    "(X) Hexadecimal:. . . . . . . {0:X}\n",
    -123, -123.45f)

// Format the current date in various ways.
Console.WriteLine "Standard DateTime Format Specifiers"
Console.WriteLine(
    "(d) Short date: . . . . . . . {0:d}\n" +
    "(D) Long date:. . . . . . . . {0:D}\n" +
    "(t) Short time: . . . . . . . {0:t}\n" +
    "(T) Long time:. . . . . . . . {0:T}\n" +
    "(f) Full date/short time: . . {0:f}\n" +
    "(F) Full date/long time:. . . {0:F}\n" +
    "(g) General date/short time:. {0:g}\n" +
    "(G) General date/long time: . {0:G}\n" +
    "    (default):. . . . . . . . {0} (default = 'G')\n" +
    "(M) Month:. . . . . . . . . . {0:M}\n" +
    "(R) RFC1123:. . . . . . . . . {0:R}\n" +
    "(s) Sortable: . . . . . . . . {0:s}\n" +
    "(u) Universal sortable: . . . {0:u} (invariant)\n" +
    "(U) Universal full date/time: {0:U}\n" +
    "(Y) Year: . . . . . . . . . . {0:Y}\n",
    thisDate)

// Format a Color enumeration value in various ways.
Console.WriteLine "Standard Enumeration Format Specifiers"
Console.WriteLine(
    "(G) General:. . . . . . . . . {0:G}\n" +
    "    (default):. . . . . . . . {0} (default = 'G')\n" +
    "(F) Flags:. . . . . . . . . . {0:F} (flags or integer)\n" +
    "(D) Decimal number: . . . . . {0:D}\n" +
    "(X) Hexadecimal:. . . . . . . {0:X}\n",
    Color.Green)


// This code example produces the following results:
//
// Standard Numeric Format Specifiers
// (C) Currency: . . . . . . . . ($123.00)
// (D) Decimal:. . . . . . . . . -123
// (E) Scientific: . . . . . . . -1.234500E+002
// (F) Fixed point:. . . . . . . -123.45
// (G) General:. . . . . . . . . -123
//     (default):. . . . . . . . -123 (default = 'G')
// (N) Number: . . . . . . . . . -123.00
// (P) Percent:. . . . . . . . . -12,345.00 %
// (R) Round-trip: . . . . . . . -123.45
// (X) Hexadecimal:. . . . . . . FFFFFF85
//
// Standard DateTime Format Specifiers
// (d) Short date: . . . . . . . 6/26/2004
// (D) Long date:. . . . . . . . Saturday, June 26, 2004
// (t) Short time: . . . . . . . 8:11 PM
// (T) Long time:. . . . . . . . 8:11:04 PM
// (f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
// (F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
// (g) General date/short time:. 6/26/2004 8:11 PM
// (G) General date/long time: . 6/26/2004 8:11:04 PM
//     (default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
// (M) Month:. . . . . . . . . . June 26
// (R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
// (s) Sortable: . . . . . . . . 2004-06-26T20:11:04
// (u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
// (U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
// (Y) Year: . . . . . . . . . . June, 2004
//
// Standard Enumeration Format Specifiers
// (G) General:. . . . . . . . . Green
//     (default):. . . . . . . . Green (default = 'G')
// (F) Flags:. . . . . . . . . . Green (flags or integer)
// (D) Decimal number: . . . . . 3
// (X) Hexadecimal:. . . . . . . 00000003

' This code example demonstrates the Console.WriteLine() method.
' Formatting for this example uses the "en-US" culture.

Class Sample
   Public Enum Color
      Yellow = 1
      Blue = 2
      Green = 3
   End Enum 'Color
   Private Shared thisDate As DateTime = DateTime.Now
   
   Public Shared Sub Main()
      Console.Clear()

      ' Format a negative integer or floating-point number in various ways.
      Console.WriteLine("Standard Numeric Format Specifiers")
      Console.WriteLine("(C) Currency: . . . . . . . . {0:C}" & vbCrLf & _
                        "(D) Decimal:. . . . . . . . . {0:D}" & vbCrLf & _
                        "(E) Scientific: . . . . . . . {1:E}" & vbCrLf & _
                        "(F) Fixed point:. . . . . . . {1:F}" & vbCrLf & _
                        "(G) General:. . . . . . . . . {0:G}" & vbCrLf & _
                        "    (default):. . . . . . . . {0} (default = 'G')" & vbCrLf & _
                        "(N) Number: . . . . . . . . . {0:N}" & vbCrLf & _
                        "(P) Percent:. . . . . . . . . {1:P}" & vbCrLf & _
                        "(R) Round-trip: . . . . . . . {1:R}" & vbCrLf & _
                        "(X) Hexadecimal:. . . . . . . {0:X}" & vbCrLf, _
                        - 123, - 123.45F)

      ' Format the current date in various ways.
      Console.WriteLine("Standard DateTime Format Specifiers")
      Console.WriteLine("(d) Short date: . . . . . . . {0:d}" & vbCrLf & _
                        "(D) Long date:. . . . . . . . {0:D}" & vbCrLf & _
                        "(t) Short time: . . . . . . . {0:t}" & vbCrLf & _
                        "(T) Long time:. . . . . . . . {0:T}" & vbCrLf & _
                        "(f) Full date/short time: . . {0:f}" & vbCrLf & _
                        "(F) Full date/long time:. . . {0:F}" & vbCrLf & _
                        "(g) General date/short time:. {0:g}" & vbCrLf & _
                        "(G) General date/long time: . {0:G}" & vbCrLf & _
                        "    (default):. . . . . . . . {0} (default = 'G')" & vbCrLf & _
                        "(M) Month:. . . . . . . . . . {0:M}" & vbCrLf & _
                        "(R) RFC1123:. . . . . . . . . {0:R}" & vbCrLf & _
                        "(s) Sortable: . . . . . . . . {0:s}" & vbCrLf & _
                        "(u) Universal sortable: . . . {0:u} (invariant)" & vbCrLf & _
                        "(U) Universal full date/time: {0:U}" & vbCrLf & _
                        "(Y) Year: . . . . . . . . . . {0:Y}" & vbCrLf, _
                        thisDate)

      ' Format a Color enumeration value in various ways.
      Console.WriteLine("Standard Enumeration Format Specifiers")
      Console.WriteLine("(G) General:. . . . . . . . . {0:G}" & vbCrLf & _
                        "    (default):. . . . . . . . {0} (default = 'G')" & vbCrLf & _
                        "(F) Flags:. . . . . . . . . . {0:F} (flags or integer)" & vbCrLf & _
                        "(D) Decimal number: . . . . . {0:D}" & vbCrLf & _
                        "(X) Hexadecimal:. . . . . . . {0:X}" & vbCrLf, _
                        Color.Green)
   End Sub
End Class
'
'This code example produces the following results:
'
'Standard Numeric Format Specifiers
'(C) Currency: . . . . . . . . ($123.00)
'(D) Decimal:. . . . . . . . . -123
'(E) Scientific: . . . . . . . -1.234500E+002
'(F) Fixed point:. . . . . . . -123.45
'(G) General:. . . . . . . . . -123
'    (default):. . . . . . . . -123 (default = 'G')
'(N) Number: . . . . . . . . . -123.00
'(P) Percent:. . . . . . . . . -12,345.00 %
'(R) Round-trip: . . . . . . . -123.45
'(X) Hexadecimal:. . . . . . . FFFFFF85
'
'Standard DateTime Format Specifiers
'(d) Short date: . . . . . . . 6/26/2004
'(D) Long date:. . . . . . . . Saturday, June 26, 2004
'(t) Short time: . . . . . . . 8:11 PM
'(T) Long time:. . . . . . . . 8:11:04 PM
'(f) Full date/short time: . . Saturday, June 26, 2004 8:11 PM
'(F) Full date/long time:. . . Saturday, June 26, 2004 8:11:04 PM
'(g) General date/short time:. 6/26/2004 8:11 PM
'(G) General date/long time: . 6/26/2004 8:11:04 PM
'    (default):. . . . . . . . 6/26/2004 8:11:04 PM (default = 'G')
'(M) Month:. . . . . . . . . . June 26
'(R) RFC1123:. . . . . . . . . Sat, 26 Jun 2004 20:11:04 GMT
'(s) Sortable: . . . . . . . . 2004-06-26T20:11:04
'(u) Universal sortable: . . . 2004-06-26 20:11:04Z (invariant)
'(U) Universal full date/time: Sunday, June 27, 2004 3:11:04 AM
'(Y) Year: . . . . . . . . . . June, 2004
'
'Standard Enumeration Format Specifiers
'(G) General:. . . . . . . . . Green
'    (default):. . . . . . . . Green (default = 'G')
'(F) Flags:. . . . . . . . . . Green (flags or integer)
'(D) Decimal number: . . . . . 3
'(X) Hexadecimal:. . . . . . . 00000003
'

下面的示例演示 Write 方法的用法。

int main()
{
   array<String^>^lineInputArr = {"1   2.2   hello	TRUE","2   5.22   bye	FALSE","3   6.38   see ya'	TRUE"};
   for ( Int32 i = 0; i < 3; i++ )
   {
      String^ lineInput = lineInputArr->GetValue( i )->ToString();
      String^ aChar =  "\t";
      array<String^>^fields = lineInput->Split( aChar->ToCharArray() );
      Boolean isFirstField = true;
      for ( Int32 i = 0; i < fields->Length; i++ )
      {
         if ( isFirstField )
                  isFirstField = false;
         else
                  Console::Write( "," );
         
         // If the field represents a boolean, replace with a numeric representation.
         try
         {
            Console::Write( Convert::ToByte( Convert::ToBoolean( fields[ i ] ) ) );
         }
         catch ( FormatException^ ) 
         {
            Console::Write( fields[ i ] );
         }


      }
      Console::WriteLine();

   }
}

public class FormatConverter
{
    public static void Main(string[] args)
    {
        string lineInput;
        while ((lineInput = Console.ReadLine()) != null)
        {
            string[] fields = lineInput.Split(new char[] {'\t'});
            bool isFirstField = true;
            foreach (var item in fields)
            {
                if (isFirstField)
                    isFirstField = false;
                else
                    Console.Write(',');

                // If the field represents a boolean, replace with a numeric representation.
                bool itemBool;
                if (Boolean.TryParse(item, out itemBool))
                    Console.Write(Convert.ToByte(itemBool));
                else
                    Console.Write(item);
            }
            Console.WriteLine();
        }
    }
}

let mutable lineInput = Console.ReadLine()
while lineInput <> null do
    let fields = lineInput.Split '\t'
    let mutable isFirstField = true

    for item in fields do
        if isFirstField then
            isFirstField <- false
        else
            Console.Write ','

        // If the field represents a boolean, replace with a numeric representation.
        match Boolean.TryParse item with 
        | true, itemBool ->
            Console.Write(Convert.ToByte itemBool)
        | _ ->
            Console.Write item
    Console.WriteLine()

Public Class FormatConverter
   Public Shared Sub Main()
      Dim lineInput As String = Console.ReadLine()
      While Not lineInput Is Nothing
         Dim fields As String() = lineInput.Split(ControlChars.Tab)
         Dim isFirstField As Boolean = True
         For Each item As String In fields
            If isFirstField Then
               isFirstField = False
            Else
               Console.Write(",")
            End If
            ' If the field represents a boolean, replace with a numeric representation.
            Dim itemBool As Boolean
            If Boolean.TryParse(item, itemBool)
                Console.Write(Convert.ToByte(itemBool))
            Else
                Console.Write(item)
            End If
         Next
         Console.WriteLine()
         lineInput = Console.ReadLine()
      End While
   End Sub
End Class

注解

此方法使用 .NET 的 复合格式设置功能 将对象的值转换为其文本表示形式，并将该表示形式嵌入字符串中。 生成的字符串将写入输出流。

参数 format 包含与零个或多个索引占位符（称为格式项）混合的零个或多个文本运行，这些占位符对应于此方法的参数列表中的对象。 格式设置过程将每个格式项替换为相应对象的值的文本表示形式。

格式项的语法是 {index[,alignment][:formatString]}，它指定强制索引、格式化文本的可选长度和对齐方式，以及控制相应对象值的格式设置方式的可选格式说明符字符串。

.NET 提供广泛的格式设置支持，以下格式设置主题对此进行了更详细的介绍。

• 有关 、 等FormatAppendFormat方法支持的复合格式设置功能的详细信息，以及 的WriteLine一些重载，请参阅复合格式设置。

• 有关数字格式说明符的详细信息，请参阅 标准数字格式字符串 和 自定义数值格式字符串。

• 有关日期和时间格式说明符的详细信息，请参阅 标准日期和时间格式字符串 和 自定义日期和时间格式字符串。

• 有关枚举格式说明符的详细信息，请参阅 枚举格式字符串。

• 有关格式设置的详细信息，请参阅 格式设置类型。

另请参阅

• Read()
• ReadLine()
• WriteLine()
• 设置 .NET 中类型的格式
• 复合格式设置

Source:

Console.cs

Source:

Console.cs

Source:

Console.cs

public:
 static void Write(System::UInt64 value);

[System.CLSCompliant(false)]
public static void Write (ulong value);

[<System.CLSCompliant(false)>]
static member Write : uint64 -> unit

Public Shared Sub Write (value As ULong)

参数

属性

CLSCompliantAttribute

例外

示例

下面的示例演示 Write 方法的用法。

int main()
{
   array<String^>^lineInputArr = {"1   2.2   hello	TRUE","2   5.22   bye	FALSE","3   6.38   see ya'	TRUE"};
   for ( Int32 i = 0; i < 3; i++ )
   {
      String^ lineInput = lineInputArr->GetValue( i )->ToString();
      String^ aChar =  "\t";
      array<String^>^fields = lineInput->Split( aChar->ToCharArray() );
      Boolean isFirstField = true;
      for ( Int32 i = 0; i < fields->Length; i++ )
      {
         if ( isFirstField )
                  isFirstField = false;
         else
                  Console::Write( "," );
         
         // If the field represents a boolean, replace with a numeric representation.
         try
         {
            Console::Write( Convert::ToByte( Convert::ToBoolean( fields[ i ] ) ) );
         }
         catch ( FormatException^ ) 
         {
            Console::Write( fields[ i ] );
         }


      }
      Console::WriteLine();

   }
}

public class FormatConverter
{
    public static void Main(string[] args)
    {
        string lineInput;
        while ((lineInput = Console.ReadLine()) != null)
        {
            string[] fields = lineInput.Split(new char[] {'\t'});
            bool isFirstField = true;
            foreach (var item in fields)
            {
                if (isFirstField)
                    isFirstField = false;
                else
                    Console.Write(',');

                // If the field represents a boolean, replace with a numeric representation.
                bool itemBool;
                if (Boolean.TryParse(item, out itemBool))
                    Console.Write(Convert.ToByte(itemBool));
                else
                    Console.Write(item);
            }
            Console.WriteLine();
        }
    }
}

let mutable lineInput = Console.ReadLine()
while lineInput <> null do
    let fields = lineInput.Split '\t'
    let mutable isFirstField = true

    for item in fields do
        if isFirstField then
            isFirstField <- false
        else
            Console.Write ','

        // If the field represents a boolean, replace with a numeric representation.
        match Boolean.TryParse item with 
        | true, itemBool ->
            Console.Write(Convert.ToByte itemBool)
        | _ ->
            Console.Write item
    Console.WriteLine()

Public Class FormatConverter
   Public Shared Sub Main()
      Dim lineInput As String = Console.ReadLine()
      While Not lineInput Is Nothing
         Dim fields As String() = lineInput.Split(ControlChars.Tab)
         Dim isFirstField As Boolean = True
         For Each item As String In fields
            If isFirstField Then
               isFirstField = False
            Else
               Console.Write(",")
            End If
            ' If the field represents a boolean, replace with a numeric representation.
            Dim itemBool As Boolean
            If Boolean.TryParse(item, itemBool)
                Console.Write(Convert.ToByte(itemBool))
            Else
                Console.Write(item)
            End If
         Next
         Console.WriteLine()
         lineInput = Console.ReadLine()
      End While
   End Sub
End Class

注解

的文本表示形式 value 是通过调用 UInt64.ToString 方法生成的。

另请参阅

• Read()
• ReadLine()
• WriteLine()

Source:

Console.cs

Source:

Console.cs

Source:

Console.cs

public:
 static void Write(System::UInt32 value);

[System.CLSCompliant(false)]
public static void Write (uint value);

[<System.CLSCompliant(false)>]
static member Write : uint32 -> unit

Public Shared Sub Write (value As UInteger)

参数

属性

CLSCompliantAttribute

例外

示例

下面的示例演示 Write 方法的用法。

int main()
{
   array<String^>^lineInputArr = {"1   2.2   hello	TRUE","2   5.22   bye	FALSE","3   6.38   see ya'	TRUE"};
   for ( Int32 i = 0; i < 3; i++ )
   {
      String^ lineInput = lineInputArr->GetValue( i )->ToString();
      String^ aChar =  "\t";
      array<String^>^fields = lineInput->Split( aChar->ToCharArray() );
      Boolean isFirstField = true;
      for ( Int32 i = 0; i < fields->Length; i++ )
      {
         if ( isFirstField )
                  isFirstField = false;
         else
                  Console::Write( "," );
         
         // If the field represents a boolean, replace with a numeric representation.
         try
         {
            Console::Write( Convert::ToByte( Convert::ToBoolean( fields[ i ] ) ) );
         }
         catch ( FormatException^ ) 
         {
            Console::Write( fields[ i ] );
         }


      }
      Console::WriteLine();

   }
}

public class FormatConverter
{
    public static void Main(string[] args)
    {
        string lineInput;
        while ((lineInput = Console.ReadLine()) != null)
        {
            string[] fields = lineInput.Split(new char[] {'\t'});
            bool isFirstField = true;
            foreach (var item in fields)
            {
                if (isFirstField)
                    isFirstField = false;
                else
                    Console.Write(',');

                // If the field represents a boolean, replace with a numeric representation.
                bool itemBool;
                if (Boolean.TryParse(item, out itemBool))
                    Console.Write(Convert.ToByte(itemBool));
                else
                    Console.Write(item);
            }
            Console.WriteLine();
        }
    }
}

let mutable lineInput = Console.ReadLine()
while lineInput <> null do
    let fields = lineInput.Split '\t'
    let mutable isFirstField = true

    for item in fields do
        if isFirstField then
            isFirstField <- false
        else
            Console.Write ','

        // If the field represents a boolean, replace with a numeric representation.
        match Boolean.TryParse item with 
        | true, itemBool ->
            Console.Write(Convert.ToByte itemBool)
        | _ ->
            Console.Write item
    Console.WriteLine()

Public Class FormatConverter
   Public Shared Sub Main()
      Dim lineInput As String = Console.ReadLine()
      While Not lineInput Is Nothing
         Dim fields As String() = lineInput.Split(ControlChars.Tab)
         Dim isFirstField As Boolean = True
         For Each item As String In fields
            If isFirstField Then
               isFirstField = False
            Else
               Console.Write(",")
            End If
            ' If the field represents a boolean, replace with a numeric representation.
            Dim itemBool As Boolean
            If Boolean.TryParse(item, itemBool)
                Console.Write(Convert.ToByte(itemBool))
            Else
                Console.Write(item)
            End If
         Next
         Console.WriteLine()
         lineInput = Console.ReadLine()
      End While
   End Sub
End Class

注解

的文本表示形式 value 是通过调用 UInt32.ToString 方法生成的。

另请参阅

• Read()
• ReadLine()
• WriteLine()

Source:

Console.cs

Source:

Console.cs

Source:

Console.cs

public:
 static void Write(System::String ^ value);

public static void Write (string? value);

public static void Write (string value);

static member Write : string -> unit

Public Shared Sub Write (value As String)

参数

例外

示例

下面的示例演示 Write 方法的用法。

int main()
{
   array<String^>^lineInputArr = {"1   2.2   hello	TRUE","2   5.22   bye	FALSE","3   6.38   see ya'	TRUE"};
   for ( Int32 i = 0; i < 3; i++ )
   {
      String^ lineInput = lineInputArr->GetValue( i )->ToString();
      String^ aChar =  "\t";
      array<String^>^fields = lineInput->Split( aChar->ToCharArray() );
      Boolean isFirstField = true;
      for ( Int32 i = 0; i < fields->Length; i++ )
      {
         if ( isFirstField )
                  isFirstField = false;
         else
                  Console::Write( "," );
         
         // If the field represents a boolean, replace with a numeric representation.
         try
         {
            Console::Write( Convert::ToByte( Convert::ToBoolean( fields[ i ] ) ) );
         }
         catch ( FormatException^ ) 
         {
            Console::Write( fields[ i ] );
         }


      }
      Console::WriteLine();

   }
}

public class FormatConverter
{
    public static void Main(string[] args)
    {
        string lineInput;
        while ((lineInput = Console.ReadLine()) != null)
        {
            string[] fields = lineInput.Split(new char[] {'\t'});
            bool isFirstField = true;
            foreach (var item in fields)
            {
                if (isFirstField)
                    isFirstField = false;
                else
                    Console.Write(',');

                // If the field represents a boolean, replace with a numeric representation.
                bool itemBool;
                if (Boolean.TryParse(item, out itemBool))
                    Console.Write(Convert.ToByte(itemBool));
                else
                    Console.Write(item);
            }
            Console.WriteLine();
        }
    }
}

let mutable lineInput = Console.ReadLine()
while lineInput <> null do
    let fields = lineInput.Split '\t'
    let mutable isFirstField = true

    for item in fields do
        if isFirstField then
            isFirstField <- false
        else
            Console.Write ','

        // If the field represents a boolean, replace with a numeric representation.
        match Boolean.TryParse item with 
        | true, itemBool ->
            Console.Write(Convert.ToByte itemBool)
        | _ ->
            Console.Write item
    Console.WriteLine()

Public Class FormatConverter
   Public Shared Sub Main()
      Dim lineInput As String = Console.ReadLine()
      While Not lineInput Is Nothing
         Dim fields As String() = lineInput.Split(ControlChars.Tab)
         Dim isFirstField As Boolean = True
         For Each item As String In fields
            If isFirstField Then
               isFirstField = False
            Else
               Console.Write(",")
            End If
            ' If the field represents a boolean, replace with a numeric representation.
            Dim itemBool As Boolean
            If Boolean.TryParse(item, itemBool)
                Console.Write(Convert.ToByte(itemBool))
            Else
                Console.Write(item)
            End If
         Next
         Console.WriteLine()
         lineInput = Console.ReadLine()
      End While
   End Sub
End Class

注解

如果值为 null，则不会向标准输出流写入任何内容。

另请参阅

• Read()
• ReadLine()
• WriteLine()

Source:

Console.cs

Source:

Console.cs

Source:

Console.cs

public:
 static void Write(cli::array <char> ^ buffer, int index, int count);

public static void Write (char[] buffer, int index, int count);

static member Write : char[] * int * int -> unit

Public Shared Sub Write (buffer As Char(), index As Integer, count As Integer)

参数

例外

注解

此方法将count从 的位置indexbuffer开始的字符写入标准输出流。

另请参阅

• Read()
• ReadLine()
• WriteLine()

Source:

Console.cs

Source:

Console.cs

Source:

Console.cs

public:
 static void Write(System::Object ^ value);

public static void Write (object? value);

public static void Write (object value);

static member Write : obj -> unit

Public Shared Sub Write (value As Object)

参数

例外

示例

下面的示例演示 Write 方法的用法。

int main()
{
   array<String^>^lineInputArr = {"1   2.2   hello	TRUE","2   5.22   bye	FALSE","3   6.38   see ya'	TRUE"};
   for ( Int32 i = 0; i < 3; i++ )
   {
      String^ lineInput = lineInputArr->GetValue( i )->ToString();
      String^ aChar =  "\t";
      array<String^>^fields = lineInput->Split( aChar->ToCharArray() );
      Boolean isFirstField = true;
      for ( Int32 i = 0; i < fields->Length; i++ )
      {
         if ( isFirstField )
                  isFirstField = false;
         else
                  Console::Write( "," );
         
         // If the field represents a boolean, replace with a numeric representation.
         try
         {
            Console::Write( Convert::ToByte( Convert::ToBoolean( fields[ i ] ) ) );
         }
         catch ( FormatException^ ) 
         {
            Console::Write( fields[ i ] );
         }


      }
      Console::WriteLine();

   }
}

public class FormatConverter
{
    public static void Main(string[] args)
    {
        string lineInput;
        while ((lineInput = Console.ReadLine()) != null)
        {
            string[] fields = lineInput.Split(new char[] {'\t'});
            bool isFirstField = true;
            foreach (var item in fields)
            {
                if (isFirstField)
                    isFirstField = false;
                else
                    Console.Write(',');

                // If the field represents a boolean, replace with a numeric representation.
                bool itemBool;
                if (Boolean.TryParse(item, out itemBool))
                    Console.Write(Convert.ToByte(itemBool));
                else
                    Console.Write(item);
            }
            Console.WriteLine();
        }
    }
}

let mutable lineInput = Console.ReadLine()
while lineInput <> null do
    let fields = lineInput.Split '\t'
    let mutable isFirstField = true

    for item in fields do
        if isFirstField then
            isFirstField <- false
        else
            Console.Write ','

        // If the field represents a boolean, replace with a numeric representation.
        match Boolean.TryParse item with 
        | true, itemBool ->
            Console.Write(Convert.ToByte itemBool)
        | _ ->
            Console.Write item
    Console.WriteLine()

Public Class FormatConverter
   Public Shared Sub Main()
      Dim lineInput As String = Console.ReadLine()
      While Not lineInput Is Nothing
         Dim fields As String() = lineInput.Split(ControlChars.Tab)
         Dim isFirstField As Boolean = True
         For Each item As String In fields
            If isFirstField Then
               isFirstField = False
            Else
               Console.Write(",")
            End If
            ' If the field represents a boolean, replace with a numeric representation.
            Dim itemBool As Boolean
            If Boolean.TryParse(item, itemBool)
                Console.Write(Convert.ToByte(itemBool))
            Else
                Console.Write(item)
            End If
         Next
         Console.WriteLine()
         lineInput = Console.ReadLine()
      End While
   End Sub
End Class

注解

如果 value 为 null，则不写入任何内容，并且不会引发异常。 否则， ToString 将调用 的 方法来 value 生成其字符串表示形式，并将生成的字符串写入标准输出流。

另请参阅

• Read()
• ReadLine()
• WriteLine()

Source:

Console.cs

Source:

Console.cs

Source:

Console.cs

public:
 static void Write(float value);

public static void Write (float value);

static member Write : single -> unit

Public Shared Sub Write (value As Single)

参数

例外

示例

下面的示例演示 Write 方法的用法。

int main()
{
   array<String^>^lineInputArr = {"1   2.2   hello	TRUE","2   5.22   bye	FALSE","3   6.38   see ya'	TRUE"};
   for ( Int32 i = 0; i < 3; i++ )
   {
      String^ lineInput = lineInputArr->GetValue( i )->ToString();
      String^ aChar =  "\t";
      array<String^>^fields = lineInput->Split( aChar->ToCharArray() );
      Boolean isFirstField = true;
      for ( Int32 i = 0; i < fields->Length; i++ )
      {
         if ( isFirstField )
                  isFirstField = false;
         else
                  Console::Write( "," );
         
         // If the field represents a boolean, replace with a numeric representation.
         try
         {
            Console::Write( Convert::ToByte( Convert::ToBoolean( fields[ i ] ) ) );
         }
         catch ( FormatException^ ) 
         {
            Console::Write( fields[ i ] );
         }


      }
      Console::WriteLine();

   }
}

public class FormatConverter
{
    public static void Main(string[] args)
    {
        string lineInput;
        while ((lineInput = Console.ReadLine()) != null)
        {
            string[] fields = lineInput.Split(new char[] {'\t'});
            bool isFirstField = true;
            foreach (var item in fields)
            {
                if (isFirstField)
                    isFirstField = false;
                else
                    Console.Write(',');

                // If the field represents a boolean, replace with a numeric representation.
                bool itemBool;
                if (Boolean.TryParse(item, out itemBool))
                    Console.Write(Convert.ToByte(itemBool));
                else
                    Console.Write(item);
            }
            Console.WriteLine();
        }
    }
}

let mutable lineInput = Console.ReadLine()
while lineInput <> null do
    let fields = lineInput.Split '\t'
    let mutable isFirstField = true

    for item in fields do
        if isFirstField then
            isFirstField <- false
        else
            Console.Write ','

        // If the field represents a boolean, replace with a numeric representation.
        match Boolean.TryParse item with 
        | true, itemBool ->
            Console.Write(Convert.ToByte itemBool)
        | _ ->
            Console.Write item
    Console.WriteLine()

Public Class FormatConverter
   Public Shared Sub Main()
      Dim lineInput As String = Console.ReadLine()
      While Not lineInput Is Nothing
         Dim fields As String() = lineInput.Split(ControlChars.Tab)
         Dim isFirstField As Boolean = True
         For Each item As String In fields
            If isFirstField Then
               isFirstField = False
            Else
               Console.Write(",")
            End If
            ' If the field represents a boolean, replace with a numeric representation.
            Dim itemBool As Boolean
            If Boolean.TryParse(item, itemBool)
                Console.Write(Convert.ToByte(itemBool))
            Else
                Console.Write(item)
            End If
         Next
         Console.WriteLine()
         lineInput = Console.ReadLine()
      End While
   End Sub
End Class

注解

的文本表示形式 value 是通过调用 Single.ToString 方法生成的。

另请参阅

• Read()
• ReadLine()
• WriteLine()

Source:

Console.cs

Source:

Console.cs

Source:

Console.cs

public:
 static void Write(char value);

public static void Write (char value);

static member Write : char -> unit

Public Shared Sub Write (value As Char)

参数

例外

示例

下面的示例演示 Write 方法的用法。

int main()
{
   array<String^>^lineInputArr = {"1   2.2   hello	TRUE","2   5.22   bye	FALSE","3   6.38   see ya'	TRUE"};
   for ( Int32 i = 0; i < 3; i++ )
   {
      String^ lineInput = lineInputArr->GetValue( i )->ToString();
      String^ aChar =  "\t";
      array<String^>^fields = lineInput->Split( aChar->ToCharArray() );
      Boolean isFirstField = true;
      for ( Int32 i = 0; i < fields->Length; i++ )
      {
         if ( isFirstField )
                  isFirstField = false;
         else
                  Console::Write( "," );
         
         // If the field represents a boolean, replace with a numeric representation.
         try
         {
            Console::Write( Convert::ToByte( Convert::ToBoolean( fields[ i ] ) ) );
         }
         catch ( FormatException^ ) 
         {
            Console::Write( fields[ i ] );
         }


      }
      Console::WriteLine();

   }
}

public class FormatConverter
{
    public static void Main(string[] args)
    {
        string lineInput;
        while ((lineInput = Console.ReadLine()) != null)
        {
            string[] fields = lineInput.Split(new char[] {'\t'});
            bool isFirstField = true;
            foreach (var item in fields)
            {
                if (isFirstField)
                    isFirstField = false;
                else
                    Console.Write(',');

                // If the field represents a boolean, replace with a numeric representation.
                bool itemBool;
                if (Boolean.TryParse(item, out itemBool))
                    Console.Write(Convert.ToByte(itemBool));
                else
                    Console.Write(item);
            }
            Console.WriteLine();
        }
    }
}

let mutable lineInput = Console.ReadLine()
while lineInput <> null do
    let fields = lineInput.Split '\t'
    let mutable isFirstField = true

    for item in fields do
        if isFirstField then
            isFirstField <- false
        else
            Console.Write ','

        // If the field represents a boolean, replace with a numeric representation.
        match Boolean.TryParse item with 
        | true, itemBool ->
            Console.Write(Convert.ToByte itemBool)
        | _ ->
            Console.Write item
    Console.WriteLine()

Public Class FormatConverter
   Public Shared Sub Main()
      Dim lineInput As String = Console.ReadLine()
      While Not lineInput Is Nothing
         Dim fields As String() = lineInput.Split(ControlChars.Tab)
         Dim isFirstField As Boolean = True
         For Each item As String In fields
            If isFirstField Then
               isFirstField = False
            Else
               Console.Write(",")
            End If
            ' If the field represents a boolean, replace with a numeric representation.
            Dim itemBool As Boolean
            If Boolean.TryParse(item, itemBool)
                Console.Write(Convert.ToByte(itemBool))
            Else
                Console.Write(item)
            End If
         Next
         Console.WriteLine()
         lineInput = Console.ReadLine()
      End While
   End Sub
End Class

另请参阅

• Read()
• ReadLine()
• WriteLine()

Source:

Console.cs

Source:

Console.cs

Source:

Console.cs

public:
 static void Write(cli::array <char> ^ buffer);

public static void Write (char[]? buffer);

public static void Write (char[] buffer);

static member Write : char[] -> unit

Public Shared Sub Write (buffer As Char())

参数

例外

另请参阅

• Read()
• ReadLine()
• WriteLine()

Source:

Console.cs

Source:

Console.cs

Source:

Console.cs

public:
 static void Write(bool value);

public static void Write (bool value);

static member Write : bool -> unit

Public Shared Sub Write (value As Boolean)

参数

例外

示例

下面的示例演示 Write 方法的用法。

int main()
{
   array<String^>^lineInputArr = {"1   2.2   hello	TRUE","2   5.22   bye	FALSE","3   6.38   see ya'	TRUE"};
   for ( Int32 i = 0; i < 3; i++ )
   {
      String^ lineInput = lineInputArr->GetValue( i )->ToString();
      String^ aChar =  "\t";
      array<String^>^fields = lineInput->Split( aChar->ToCharArray() );
      Boolean isFirstField = true;
      for ( Int32 i = 0; i < fields->Length; i++ )
      {
         if ( isFirstField )
                  isFirstField = false;
         else
                  Console::Write( "," );
         
         // If the field represents a boolean, replace with a numeric representation.
         try
         {
            Console::Write( Convert::ToByte( Convert::ToBoolean( fields[ i ] ) ) );
         }
         catch ( FormatException^ ) 
         {
            Console::Write( fields[ i ] );
         }


      }
      Console::WriteLine();

   }
}

public class FormatConverter
{
    public static void Main(string[] args)
    {
        string lineInput;
        while ((lineInput = Console.ReadLine()) != null)
        {
            string[] fields = lineInput.Split(new char[] {'\t'});
            bool isFirstField = true;
            foreach (var item in fields)
            {
                if (isFirstField)
                    isFirstField = false;
                else
                    Console.Write(',');

                // If the field represents a boolean, replace with a numeric representation.
                bool itemBool;
                if (Boolean.TryParse(item, out itemBool))
                    Console.Write(Convert.ToByte(itemBool));
                else
                    Console.Write(item);
            }
            Console.WriteLine();
        }
    }
}

let mutable lineInput = Console.ReadLine()
while lineInput <> null do
    let fields = lineInput.Split '\t'
    let mutable isFirstField = true

    for item in fields do
        if isFirstField then
            isFirstField <- false
        else
            Console.Write ','

        // If the field represents a boolean, replace with a numeric representation.
        match Boolean.TryParse item with 
        | true, itemBool ->
            Console.Write(Convert.ToByte itemBool)
        | _ ->
            Console.Write item
    Console.WriteLine()

Public Class FormatConverter
   Public Shared Sub Main()
      Dim lineInput As String = Console.ReadLine()
      While Not lineInput Is Nothing
         Dim fields As String() = lineInput.Split(ControlChars.Tab)
         Dim isFirstField As Boolean = True
         For Each item As String In fields
            If isFirstField Then
               isFirstField = False
            Else
               Console.Write(",")
            End If
            ' If the field represents a boolean, replace with a numeric representation.
            Dim itemBool As Boolean
            If Boolean.TryParse(item, itemBool)
                Console.Write(Convert.ToByte(itemBool))
            Else
                Console.Write(item)
            End If
         Next
         Console.WriteLine()
         lineInput = Console.ReadLine()
      End While
   End Sub
End Class

注解

的文本表示形式 value 通过调用 Boolean.ToString生成，后者输出 Boolean.TrueString 或 Boolean.FalseString。

另请参阅

• Read()
• ReadLine()
• WriteLine()

Source:

Console.cs

Source:

Console.cs

Source:

Console.cs

public:
 static void Write(double value);

public static void Write (double value);

static member Write : double -> unit

Public Shared Sub Write (value As Double)

参数

例外

示例

下面的示例演示 Write 方法的用法。

int main()
{
   array<String^>^lineInputArr = {"1   2.2   hello	TRUE","2   5.22   bye	FALSE","3   6.38   see ya'	TRUE"};
   for ( Int32 i = 0; i < 3; i++ )
   {
      String^ lineInput = lineInputArr->GetValue( i )->ToString();
      String^ aChar =  "\t";
      array<String^>^fields = lineInput->Split( aChar->ToCharArray() );
      Boolean isFirstField = true;
      for ( Int32 i = 0; i < fields->Length; i++ )
      {
         if ( isFirstField )
                  isFirstField = false;
         else
                  Console::Write( "," );
         
         // If the field represents a boolean, replace with a numeric representation.
         try
         {
            Console::Write( Convert::ToByte( Convert::ToBoolean( fields[ i ] ) ) );
         }
         catch ( FormatException^ ) 
         {
            Console::Write( fields[ i ] );
         }


      }
      Console::WriteLine();

   }
}

public class FormatConverter
{
    public static void Main(string[] args)
    {
        string lineInput;
        while ((lineInput = Console.ReadLine()) != null)
        {
            string[] fields = lineInput.Split(new char[] {'\t'});
            bool isFirstField = true;
            foreach (var item in fields)
            {
                if (isFirstField)
                    isFirstField = false;
                else
                    Console.Write(',');

                // If the field represents a boolean, replace with a numeric representation.
                bool itemBool;
                if (Boolean.TryParse(item, out itemBool))
                    Console.Write(Convert.ToByte(itemBool));
                else
                    Console.Write(item);
            }
            Console.WriteLine();
        }
    }
}

let mutable lineInput = Console.ReadLine()
while lineInput <> null do
    let fields = lineInput.Split '\t'
    let mutable isFirstField = true

    for item in fields do
        if isFirstField then
            isFirstField <- false
        else
            Console.Write ','

        // If the field represents a boolean, replace with a numeric representation.
        match Boolean.TryParse item with 
        | true, itemBool ->
            Console.Write(Convert.ToByte itemBool)
        | _ ->
            Console.Write item
    Console.WriteLine()

Public Class FormatConverter
   Public Shared Sub Main()
      Dim lineInput As String = Console.ReadLine()
      While Not lineInput Is Nothing
         Dim fields As String() = lineInput.Split(ControlChars.Tab)
         Dim isFirstField As Boolean = True
         For Each item As String In fields
            If isFirstField Then
               isFirstField = False
            Else
               Console.Write(",")
            End If
            ' If the field represents a boolean, replace with a numeric representation.
            Dim itemBool As Boolean
            If Boolean.TryParse(item, itemBool)
                Console.Write(Convert.ToByte(itemBool))
            Else
                Console.Write(item)
            End If
         Next
         Console.WriteLine()
         lineInput = Console.ReadLine()
      End While
   End Sub
End Class

注解

的文本表示形式 value 是通过调用 Double.ToString 方法生成的。

另请参阅

• Read()
• ReadLine()
• WriteLine()

Source:

Console.cs

Source:

Console.cs

Source:

Console.cs

public:
 static void Write(int value);

public static void Write (int value);

static member Write : int -> unit

Public Shared Sub Write (value As Integer)

参数

例外

示例

下面的示例演示 Write 方法的用法。

int main()
{
   array<String^>^lineInputArr = {"1   2.2   hello	TRUE","2   5.22   bye	FALSE","3   6.38   see ya'	TRUE"};
   for ( Int32 i = 0; i < 3; i++ )
   {
      String^ lineInput = lineInputArr->GetValue( i )->ToString();
      String^ aChar =  "\t";
      array<String^>^fields = lineInput->Split( aChar->ToCharArray() );
      Boolean isFirstField = true;
      for ( Int32 i = 0; i < fields->Length; i++ )
      {
         if ( isFirstField )
                  isFirstField = false;
         else
                  Console::Write( "," );
         
         // If the field represents a boolean, replace with a numeric representation.
         try
         {
            Console::Write( Convert::ToByte( Convert::ToBoolean( fields[ i ] ) ) );
         }
         catch ( FormatException^ ) 
         {
            Console::Write( fields[ i ] );
         }


      }
      Console::WriteLine();

   }
}

public class FormatConverter
{
    public static void Main(string[] args)
    {
        string lineInput;
        while ((lineInput = Console.ReadLine()) != null)
        {
            string[] fields = lineInput.Split(new char[] {'\t'});
            bool isFirstField = true;
            foreach (var item in fields)
            {
                if (isFirstField)
                    isFirstField = false;
                else
                    Console.Write(',');

                // If the field represents a boolean, replace with a numeric representation.
                bool itemBool;
                if (Boolean.TryParse(item, out itemBool))
                    Console.Write(Convert.ToByte(itemBool));
                else
                    Console.Write(item);
            }
            Console.WriteLine();
        }
    }
}

let mutable lineInput = Console.ReadLine()
while lineInput <> null do
    let fields = lineInput.Split '\t'
    let mutable isFirstField = true

    for item in fields do
        if isFirstField then
            isFirstField <- false
        else
            Console.Write ','

        // If the field represents a boolean, replace with a numeric representation.
        match Boolean.TryParse item with 
        | true, itemBool ->
            Console.Write(Convert.ToByte itemBool)
        | _ ->
            Console.Write item
    Console.WriteLine()

Public Class FormatConverter
   Public Shared Sub Main()
      Dim lineInput As String = Console.ReadLine()
      While Not lineInput Is Nothing
         Dim fields As String() = lineInput.Split(ControlChars.Tab)
         Dim isFirstField As Boolean = True
         For Each item As String In fields
            If isFirstField Then
               isFirstField = False
            Else
               Console.Write(",")
            End If
            ' If the field represents a boolean, replace with a numeric representation.
            Dim itemBool As Boolean
            If Boolean.TryParse(item, itemBool)
                Console.Write(Convert.ToByte(itemBool))
            Else
                Console.Write(item)
            End If
         Next
         Console.WriteLine()
         lineInput = Console.ReadLine()
      End While
   End Sub
End Class

注解

的文本表示形式 value 是通过调用 Int32.ToString 方法生成的。

另请参阅

• Read()
• ReadLine()
• WriteLine()

Source:

Console.cs

Source:

Console.cs

Source:

Console.cs

public:
 static void Write(long value);

public static void Write (long value);

static member Write : int64 -> unit

Public Shared Sub Write (value As Long)

参数

例外

示例

下面的示例演示 Write 方法的用法。

int main()
{
   array<String^>^lineInputArr = {"1   2.2   hello	TRUE","2   5.22   bye	FALSE","3   6.38   see ya'	TRUE"};
   for ( Int32 i = 0; i < 3; i++ )
   {
      String^ lineInput = lineInputArr->GetValue( i )->ToString();
      String^ aChar =  "\t";
      array<String^>^fields = lineInput->Split( aChar->ToCharArray() );
      Boolean isFirstField = true;
      for ( Int32 i = 0; i < fields->Length; i++ )
      {
         if ( isFirstField )
                  isFirstField = false;
         else
                  Console::Write( "," );
         
         // If the field represents a boolean, replace with a numeric representation.
         try
         {
            Console::Write( Convert::ToByte( Convert::ToBoolean( fields[ i ] ) ) );
         }
         catch ( FormatException^ ) 
         {
            Console::Write( fields[ i ] );
         }


      }
      Console::WriteLine();

   }
}

public class FormatConverter
{
    public static void Main(string[] args)
    {
        string lineInput;
        while ((lineInput = Console.ReadLine()) != null)
        {
            string[] fields = lineInput.Split(new char[] {'\t'});
            bool isFirstField = true;
            foreach (var item in fields)
            {
                if (isFirstField)
                    isFirstField = false;
                else
                    Console.Write(',');

                // If the field represents a boolean, replace with a numeric representation.
                bool itemBool;
                if (Boolean.TryParse(item, out itemBool))
                    Console.Write(Convert.ToByte(itemBool));
                else
                    Console.Write(item);
            }
            Console.WriteLine();
        }
    }
}

let mutable lineInput = Console.ReadLine()
while lineInput <> null do
    let fields = lineInput.Split '\t'
    let mutable isFirstField = true

    for item in fields do
        if isFirstField then
            isFirstField <- false
        else
            Console.Write ','

        // If the field represents a boolean, replace with a numeric representation.
        match Boolean.TryParse item with 
        | true, itemBool ->
            Console.Write(Convert.ToByte itemBool)
        | _ ->
            Console.Write item
    Console.WriteLine()

Public Class FormatConverter
   Public Shared Sub Main()
      Dim lineInput As String = Console.ReadLine()
      While Not lineInput Is Nothing
         Dim fields As String() = lineInput.Split(ControlChars.Tab)
         Dim isFirstField As Boolean = True
         For Each item As String In fields
            If isFirstField Then
               isFirstField = False
            Else
               Console.Write(",")
            End If
            ' If the field represents a boolean, replace with a numeric representation.
            Dim itemBool As Boolean
            If Boolean.TryParse(item, itemBool)
                Console.Write(Convert.ToByte(itemBool))
            Else
                Console.Write(item)
            End If
         Next
         Console.WriteLine()
         lineInput = Console.ReadLine()
      End While
   End Sub
End Class

注解

的文本表示形式 value 是通过调用 Int64.ToString 方法生成的。

另请参阅

• Read()
• ReadLine()
• WriteLine()

Source:

Console.cs

Source:

Console.cs

Source:

Console.cs

public:
 static void Write(System::Decimal value);

public static void Write (decimal value);

static member Write : decimal -> unit

Public Shared Sub Write (value As Decimal)

参数

例外

示例

下面的示例演示 Write 方法的用法。

int main()
{
   array<String^>^lineInputArr = {"1   2.2   hello	TRUE","2   5.22   bye	FALSE","3   6.38   see ya'	TRUE"};
   for ( Int32 i = 0; i < 3; i++ )
   {
      String^ lineInput = lineInputArr->GetValue( i )->ToString();
      String^ aChar =  "\t";
      array<String^>^fields = lineInput->Split( aChar->ToCharArray() );
      Boolean isFirstField = true;
      for ( Int32 i = 0; i < fields->Length; i++ )
      {
         if ( isFirstField )
                  isFirstField = false;
         else
                  Console::Write( "," );
         
         // If the field represents a boolean, replace with a numeric representation.
         try
         {
            Console::Write( Convert::ToByte( Convert::ToBoolean( fields[ i ] ) ) );
         }
         catch ( FormatException^ ) 
         {
            Console::Write( fields[ i ] );
         }


      }
      Console::WriteLine();

   }
}

public class FormatConverter
{
    public static void Main(string[] args)
    {
        string lineInput;
        while ((lineInput = Console.ReadLine()) != null)
        {
            string[] fields = lineInput.Split(new char[] {'\t'});
            bool isFirstField = true;
            foreach (var item in fields)
            {
                if (isFirstField)
                    isFirstField = false;
                else
                    Console.Write(',');

                // If the field represents a boolean, replace with a numeric representation.
                bool itemBool;
                if (Boolean.TryParse(item, out itemBool))
                    Console.Write(Convert.ToByte(itemBool));
                else
                    Console.Write(item);
            }
            Console.WriteLine();
        }
    }
}

let mutable lineInput = Console.ReadLine()
while lineInput <> null do
    let fields = lineInput.Split '\t'
    let mutable isFirstField = true

    for item in fields do
        if isFirstField then
            isFirstField <- false
        else
            Console.Write ','

        // If the field represents a boolean, replace with a numeric representation.
        match Boolean.TryParse item with 
        | true, itemBool ->
            Console.Write(Convert.ToByte itemBool)
        | _ ->
            Console.Write item
    Console.WriteLine()

Public Class FormatConverter
   Public Shared Sub Main()
      Dim lineInput As String = Console.ReadLine()
      While Not lineInput Is Nothing
         Dim fields As String() = lineInput.Split(ControlChars.Tab)
         Dim isFirstField As Boolean = True
         For Each item As String In fields
            If isFirstField Then
               isFirstField = False
            Else
               Console.Write(",")
            End If
            ' If the field represents a boolean, replace with a numeric representation.
            Dim itemBool As Boolean
            If Boolean.TryParse(item, itemBool)
                Console.Write(Convert.ToByte(itemBool))
            Else
                Console.Write(item)
            End If
         Next
         Console.WriteLine()
         lineInput = Console.ReadLine()
      End While
   End Sub
End Class

注解

的文本表示形式 value 是通过调用 Decimal.ToString生成的。

另请参阅

• Read()
• ReadLine()
• WriteLine()