我要评论本文实例讲述了c#隐藏控制台键盘输入的方法。分享给大家供大家参考。具体如下：
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] + "\"" );
}
}
// 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;
}
}
}
希望本文所述对大家的c#程序设计有所帮助。
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