C#如何隐藏键盘输入：c#隐藏控制台键盘输入的实现代码

using System;
namespace RobvanderWoude
{
class HideInput
{
static int Main( string[] args )
{
 try
 {
bool clearscreen = false;
if ( args.Length > 1 )
{
 return WriteError( "Too many command line arguments" );
}
if ( args.Length == 1 )
{
 switch ( args[0].ToUpper( ) )
 {
case "/C":
 clearscreen = true;
 break;
case "/?":
 return WriteError( );
default:
 return WriteError( "Invalid command line argument "" + args[0] + """ );
 }
}
//C#隐藏控制台键盘输入
// Set console foreground color to background color to hide what's being typed
ConsoleColor color = Console.ForegroundColor;
Console.ForegroundColor = Console.BackgroundColor;
// Read 1 line of input from the console
string input = Console.ReadLine( );
// Restore the original console foreground color
Console.ForegroundColor = color;
// Clear the screen id specified on the command line
if ( clearscreen )
{
 Console.Clear( );
}
// Display the input - which should be redirected for this program to be of any use
Console.WriteLine( input );
// Returncode 0 for success, or 1 if the input was empty or whitespace only
if ( string.IsNullOrWhiteSpace( input ) )
{
 return 1;
}
else
{
 return 0;
}
 }
 catch ( Exception e )
 {
return WriteError( e.Message );
 }
}
public static int WriteError( string errorMessage = "" )
{
 Console.ResetColor( );
 if ( string.IsNullOrEmpty( errorMessage ) == false )
 {
Console.Error.WriteLine( );
Console.ForegroundColor = ConsoleColor.Red;
Console.Error.Write( "ERROR: " );
Console.ForegroundColor = ConsoleColor.White;
Console.Error.WriteLine( errorMessage );
Console.ResetColor( );
 }
 Console.Error.WriteLine( );
 Console.Error.WriteLine( "HideInput, Version 1.10" );
 Console.Error.WriteLine( "Batch utility to read 1 line of input while hiding what's being typed, by" );
 Console.Error.WriteLine( "temporarily setting the console foreground color equal to its background color" );
 Console.Error.WriteLine( );
 Console.Error.Write( "Usage: FOR /F "tokens=*" %%A IN ('" );
 Console.ForegroundColor = ConsoleColor.White;
 Console.Error.Write( "HIDEINPUT" );
 Console.ResetColor( );
 Console.Error.WriteLine( "') DO SET password=%%A" );
 Console.Error.Write( "or: FOR /F "tokens=*" %%A IN ('" );
 Console.ForegroundColor = ConsoleColor.White;
 Console.Error.Write( "HIDEINPUT /C" );
 Console.ResetColor( );
 Console.Error.WriteLine( "') DO SET password=%%A" );
 Console.Error.WriteLine( );
 Console.Error.Write( "Where: " );
 Console.ForegroundColor = ConsoleColor.White;
 Console.Error.Write( "/C" );
 Console.ResetColor( );
 Console.Error.WriteLine( " clears the screen to remove what's typed from the screen buffer" );
 Console.Error.WriteLine( );
 Console.Error.WriteLine( "Written by Rob van der Woude" );
 return 1;
}
 }
}