实现对验证码的识别,通过对特征码的提取，对数字进行识别，程序可以自动学习，识别率不错-Verification code to achieve the identification, through the signature of the extraction, identification of figures, the program can automatically learn good recognition rate

易语言汇编RSA算法源码,集生成密钥对,加解密,签名验证-Easy assembly language RSA algorithm source code, set to generate a key pair, encryption and decryption, signature verification

delphi 计算两个字符串的相似度 , 做验证码识别用来匹配特征库-Delphi calculate the similarity of two strings, do the verification code to identify the signature library