验证码识别,对于正规的数字验证码识别能达到100 ,同时加入了字符串的相似度匹配算法-Identification code validation for regular digital identification code validation can reach 100 , while adding a string similarity matching algorithm

基于B/S架构完成两个字符串的比较，分为文本比较以及字符串比较两种。VS2010下的工程文件，基于WEB页的文本比较源码，不仅能够完成相似度的计算而且可以给出两个文本的对比差异并用不同颜色区分。-a kind of source code for based on B/S arch to compare two strings , give the degree of similarity and show the difference between two strings with diff