MD5加密解密工具，新出现的MD5值自动加到数据库，本地找不到继续到网络上找，网络上找不到就生成新的Md5比对。-The MD5 encrypts to decrypt tool, lately- appeared MD5 valueses automatically add a database, local can not find to continue to seek in the network, can not find born new Md5 to compare a rightness on the network.