touchmm 发表于 2013-2-5 09:06:07

自动识别图形验证码

现在大多数网站都采用了验证码来防止暴力破解或恶意提交。但验证码真的就很安全吗？真的就不能被机器识别？？
我先讲讲我是怎么实现站外提交留言到一个网站的程序。
这个网站的留言版大致如下：

http://p.blog.csdn.net/images/p_blog_csdn_net/zhangjianying/liuyanbanLT.JPG


我一看这种简单的4位数字验证码，马上就感觉到有戏了。直觉告诉我让电脑来识别这些图片验证码据对简单o(∩_∩)o...
首先我马上在这个页面用右键菜单看源代码
http://p.blog.csdn.net/images/p_blog_csdn_net/zhangjianying/%E9%AA%8C%E8%AF%81.JPG

知道验证码获取页面后 你可以直接用 http://www.XXXX.com/imgchk/validatecode.asp 这样去访问你会发现你打开的就是一个验证码图片。

http://p.blog.csdn.net/images/p_blog_csdn_net/zhangjianying/yanzhengma_2022.jpg


对的其实返回的就是图片文件的2进制流而已。接着先用右键保存一张验证码的图片。因为要开始分析这张图片了，什么用什么工具？PhotoShop????不用就一般的画图工具就可以了。我们要搞清楚的是 这几个数字分别占几个像素就可以了。

http://p.blog.csdn.net/images/p_blog_csdn_net/zhangjianying/kuantu.JPG


可以看出 一个数字5*9 也就是45个像素。恩 这就可以了 另外我们可以看出 默认区域就是白色
（姑且说是白色因为我们肉眼看就是白色）
那么我的程序识别原理就是固定去扫描这45个像素点。看每个点的颜色是不是和默认的颜色一致
一致的话就标记为0 ，不一致就标记为1 。
如一个数子是2 那么我的程序扫描出来的图像就应该是：
011110
100001
000001
000001
000010
000100
001000
010000
100000
111111
如果一个数字是7那么扫描出来的图像就是：
111111
100001
000010
000010
000100
000100
001000
001000
010000
010000

恩,就这么简单呵呵。下面给出图像 扫描的java类 (不好意思，在我会的语言里面除开java就剩sql了)<div style="">http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gifpackagecom.util;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif//~---JDKimports------------------------------------------------------------
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gifimportcom.sun.image.codec.jpeg.JPEGCodec;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gifimportcom.sun.image.codec.jpeg.JPEGEncodeParam;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gifimportcom.sun.image.codec.jpeg.JPEGImageEncoder;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gifimportjava.awt.*;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gifimportjava.awt.image.*;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gifimportjava.io.*;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gifimportjava.io.FileOutputStream;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gifimportjava.io.OutputStream;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gifimportjava.net.*;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gifimportjavax.imageio.*;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gifimportjavax.imageio.ImageIO;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/None.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedBlock.gif/***//**
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*登陆验证图片转换为数字
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*@version1.0,08/04/20
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*@author张健滢
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockEnd.gif*/
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedBlock.gifpublicclassImgIdent...{
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif//数字字符比特表
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gifprivatefinallong[][]NUMERIC=...{
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif...{512104545,562436190},//'0'
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif...{148931080,136348222},//'1'
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif...{511971394,69273663},//'2'
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif...{511971406,17045598},//'3'
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif...{35168914,586948743},//'4'
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif...{1065486398,17045598},//'5'
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif...{239208494,830871646},//'6'
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif...{1065623684,69239824},//'7'
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif...{512104542,562436190},//'8'
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif...{512104547,486805660}
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif};//'9'
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif//字框高
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifprivateintintCharHeight=10;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif//字框横向间隙
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifprivateintintCharSpaceH=5;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif//字框纵向间隙
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifprivateintintCharSpaceY=1;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif//字框宽
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifprivateintintCharWidth=5;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifprivateintIntImgHeight;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifprivateBufferedImageimg;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifprivateintintBgColor;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifprivateintintCharColor;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifprivateintintImgWith;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifprivateintintMaxX;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifprivateintintMaxY;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifprivateintintMinX;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifprivateintintMinY;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif//座标原点
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifprivatePointpOrigin;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifprivateStringstrNum;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif/***//**
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*Constructs...
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*@paramimg
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*@throwsIOException
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif*/
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gifpublicImgIdent(BufferedImageimg)throwsIOException...{
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifthis.img=img;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifinit();
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif}
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif/***//**
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*构造函数
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*@paramfile本地文件
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*@throwsIOException
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif*/
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gifpublicImgIdent(Filefile)throwsIOException...{
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifimg=ImageIO.read(file);
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifinit();
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif}
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif/***//**
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*构造函数
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*@paramurl远程文件
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*@throwsIOException
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif*/
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gifpublicImgIdent(URLurl)throwsIOException...{
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifimg=ImageIO.read(url);
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifinit();
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif}
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif/***//**
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*类初始工作
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif*/
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gifprivatevoidinit()...{
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif//得到图象的长度和宽度
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifintImgWith=img.getWidth();
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifIntImgHeight=img.getHeight();
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif//得到图象的背景颜色
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifintBgColor=img.getRGB(7,4);
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif//System.out.println(intBgColor);
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif//初始化图象原点座标
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifpOrigin=newPoint(0,0);
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif}
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif/***//**
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*Methoddescription
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif*/
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gifprivatevoidgetBaseInfo()...{
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifSystem.out.println(intBgColor+"|"+intCharColor);
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifSystem.out.println(intMinX+"|"+intMinY+"|"+intMaxX+"|"+intMaxY);
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif}
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif/***//**
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*得到字符的左上右下点座标
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*@paramintNoint第n个字符
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*@returnint[]
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif*/
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gifprivatePoint[]getCharRange(intintNo)...{
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif//左上右下点座标
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifPointpTopLeft=newPoint(0,0);
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifPointpBottomRight=newPoint(0,0);
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif//左上点
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifpTopLeft.x=pOrigin.x+intCharWidth*(intNo-1)+intCharSpaceH*(intNo-1);
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifpTopLeft.y=pOrigin.y;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif//右下点
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifpBottomRight.x=1+pOrigin.x+intCharWidth*intNo+intCharSpaceH*(intNo-1)-1;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifpBottomRight.y=pOrigin.y+intCharHeight-1;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gifreturnnewPoint[]...{pTopLeft,pBottomRight};
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif}
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif/***//**
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*与背景颜色比较返回相应的字符
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*@paramxint横座标
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*@paramyint纵座标
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*@returnchar返回字符
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif*/
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gifprivatechargetBit(intx,inty)...{
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifintintCurtColor;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifintCurtColor=img.getRGB(x,y);
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif//System.out.println("["+x+","+y+"]"+intCurtColor+"=="+intBgColor+"==>"+(Math.abs(intCurtColor)>7308252));
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif//return(Math.abs(intCurtColor)>=5689325)
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif//?'0'
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif//:'1';
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifreturn(intCurtColor==intBgColor)
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif?'0'
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif:'1';
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif//56893256008535
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif}
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gif/***//**
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*得到第n个字符对应的字符串
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*@paramintNoint第n个字符
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif*@returnString代表字符位的串
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockEnd.gif*/
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/ExpandedSubBlockStart.gifhttp://images.csdn.net/syntaxhighlighting/OutliningIndicators/ContractedSubBlock.gifprivateStringgetCharString(intintNo)...{
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif//本字符的左上右下点座标
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifPoint[]p=getCharRange(intNo);
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifPointpTopLeft=p[0];
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifPointpBottomRight=p[1];
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif//换算边界值
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifintintX1,intY1,intX2,intY2;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gif
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifintX1=pTopLeft.x;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifintY1=pTopLeft.y;
http://images.csdn.net/syntaxhighlighting/OutliningIndicators/InBlock.gifintX2=<span style="color: rgb(0,0,0);">pBottomRight.x;
http://www.agoit.com/bbs/http://images.csdn.n
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