C#从windows剪贴板获取并显示文本内容的方法

using System;using System.Windows.Forms;namespace RobvanderWoude{ class Paste {  [STAThread]  static int Main( string[] args )  {   if ( args.Length == 0 )   {    try    {     if ( Clipboard.ContainsText( ) )     {      string clipText = Clipboard.GetText( );      Console.Write( clipText );      return 0;     }     else     {      return 1;     }    }    catch ( Exception e )    {     Console.Error.WriteLine( e.Message );     return 2;    }   }   else   {    Console.Error.WriteLine( );    Console.Error.WriteLine( "Paste.exe, Version 1.01" );    Console.Error.WriteLine( "Read and display text from the clipboard" );    Console.Error.WriteLine( );    Console.Error.WriteLine( "Usage: PASTE" );    Console.Error.WriteLine( );    Console.Error.WriteLine( "Note:  The program returns the following 'errorlevels':" );    Console.Error.WriteLine( " 0 success" );    Console.Error.WriteLine( " 1 no text available in clipboard" );    Console.Error.WriteLine( " 2 command line or unknown error" );    Console.Error.WriteLine( );    Console.Error.WriteLine( "Written by Rob van der Woude" );    return 2;   }  } }}