C#取验证码

最新推荐文章于 2019-07-24 03:42:59 发布

no_mIss

最新推荐文章于 2019-07-24 03:42:59 发布

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分类专栏： asp开发文章标签： c# string exception system class null

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using System;

using System.Drawing;

using System.Drawing.Drawing2D;

using System.Net;

using System.Net.Sockets;

namespace LeadBBSEnder

{

/// <summary>

/// ValidateCode 的摘要说明。

/// </summary>

public sealed class RunningRes

{

private static TcpClienter _tc;

public static TcpClienter Tcp

{

get

{

if( _tc == null )

_tc = new TcpClienter( string.Empty , new IPEndPoint(IPAddress.Any , 1710) , new IPEndPoint(IPAddress.Parse( "221.12.79.162" ) , 80) );

return _tc;

}

public static string GetValidateCode( Bitmap bm )

{

short s1 = Paste( bm , Position.Char1 );

short s2 = Paste( bm , Position.Char2 );

short s3 = Paste( bm , Position.Char3 );

short s4 = Paste( bm , Position.Char4 );

return string.Format("{0}{1}{2}{3}" , s1 , s2 , s3 , s4 );

}

private static Point GetOffsetPoint( Position p )

{

switch( p )

{

case Position.Char1:

return new Point( 2 , 1 );

case Position.Char2:

return new Point( 9 , 1 );

case Position.Char3:

return new Point( 16 , 1 );

default:

return new Point( 23 , 1 );

}

private static short Paste( Bitmap bm , Position pc )

{

short[,] Char0 = {

{ 0,1,1,1,1,0 },

{ 1,1,0,0,1,1 },

{ 0,1,1,1,1,0 }

};

short[,] Char1 = {

{ 0,0,1,1,0,0 },

{ 0,1,1,1,0,0 },

{ 0,0,1,1,0,0 },

{ 0,1,1,1,1,0 }

};

short[,] Char2 = {

{ 0,1,1,1,1,0 },

{ 1,1,0,0,1,1 },

{ 0,0,0,1,1,0 },

{ 0,0,1,1,0,0 },

{ 0,1,1,0,0,0 },

{ 1,1,0,0,0,0 },

{ 1,1,1,1,1,1 }

};

short[,] Char3 = {

{ 0,1,1,1,1,0 },

{ 1,1,0,0,1,1 },

{ 0,0,0,0,1,1 },

{ 0,0,1,1,1,0 },

{ 0,0,0,0,1,1 },

{ 1,1,0,0,1,1 },

{ 0,1,1,1,1,0 }

};

short[,] Char4 = {

{ 0,0,0,1,1,0 },

{ 0,0,1,1,1,0 },

{ 0,1,1,1,1,0 },

{ 1,1,0,1,1,0 },

{ 0,1,1,1,1,1 },

{ 0,0,0,1,1,0 },

{ 0,0,0,1,1,1 }

};

short[,] Char5 = {

{ 1,1,1,1,1,1 },

{ 1,1,0,0,0,0 },

{ 1,1,1,1,1,0 },

{ 0,0,0,0,1,1 },

{ 1,1,0,0,1,1 },

{ 0,1,1,1,1,0 }

};

short[,] Char6 = {

{ 0,1,1,1,1,0 },

{ 1,1,0,1,1,0 },

{ 1,1,0,0,0,0 },

{ 1,1,1,1,1,0 },

{ 1,1,0,0,1,1 },

{ 0,1,1,1,1,0 }

};

short[,] Char7 = {

{ 1,1,1,1,1,1 },

{ 1,1,0,1,1,0 },

{ 0,0,0,1,1,0 },

{ 0,0,1,1,0,0 },

{ 0,0,1,1,0,0 }

};

short[,] Char8 = {

{ 0,1,1,1,1,0 },

{ 1,1,0,0,1,1 },

{ 0,1,1,1,1,0 },

{ 1,1,0,0,1,1 },

{ 0,1,1,1,1,0 }

};

short[,] Char9 = {

{ 0,1,1,1,1,0 },

{ 1,1,0,0,1,1 },

{ 0,1,1,1,1,1 },

{ 0,0,0,0,1,1 },

{ 0,1,1,0,1,1 },

{ 0,1,1,1,1,0 }

};

Point Sp = GetOffsetPoint( pc );

if( Paste(bm,Sp,Char0) )

return 0;

if( Paste(bm,Sp,Char1) )

return 1;

if( Paste(bm,Sp,Char2) )

return 2;

if( Paste(bm,Sp,Char3) )

return 3;

if( Paste(bm,Sp,Char4) )

return 4;

if( Paste(bm,Sp,Char5) )

return 5;

if( Paste(bm,Sp,Char6) )

return 6;

if( Paste(bm,Sp,Char7) )

return 7;

if( Paste(bm,Sp,Char8) )

return 8;

if( Paste(bm,Sp,Char9) )

return 9;

throw new Exception("解释不到!");

}

private static bool Paste( Bitmap bm , Point offset, short[,] Char )

{

for( int i = 0 ; i < 8 ; i++ )

{

for( int j = 0 ; j < 6 ; j++ )

{

Color Pc = bm.GetPixel( offset.X + j , offset.Y + i );

if( Pc.A == 255 && Char[i,j] == 1 || Pc.A == 0 && Char[i,j] == 0 )

continue;

else

return false;

}

return true;

}

internal enum Position

{

Char1,Char2,Char3,Char4

}