TextWriter.Null 字段

定义

提供 TextWriter,它不带任何可写入但无法从中读取的后备存储。Provides a TextWriter with no backing store that can be written to, but not read from.

public: static initonly System::IO::TextWriter ^ Null;
public static readonly System.IO.TextWriter Null;
 staticval mutable Null : System.IO.TextWriter
Public Shared ReadOnly Null As TextWriter 

字段值

TextWriter

注解

使用将 Null 输出重定向到不使用任何操作系统资源的流。Use Null to redirect output to a stream that will not consume any operating system resources.

TextWriter.Write 在上调用方法时 Null ,调用只会返回,而不会向任何后备存储写入任何数据。When the TextWriter.Write methods are invoked on Null, the call simply returns, and no data is actually written to any backing store.

有关常见 i/o 任务的列表,请参阅 常见 I/o 任务For a list of common I/O tasks, see Common I/O Tasks.

适用于

另请参阅