经常会遇到加密的access数据库，改程序能解密access数据库密码。-Often encounter encrypted access the database, change the program can decrypt access database password.

标准C++写的使用MD5算法加密和解密的代码，这个代码测试可以使用。-Written in standard C++ using the MD5 algorithm to encrypt and decrypt the code, this code test can be used.