vc＋＋下实现与mysql数据库连接的源码程序。运行时需要mysql安装目录下的lib和include文件夹中的文件。另外系统源码中连接的是mysql数据库的ip地址，据情况自己设定。-vc under the mysql database connection with the source program. Run-time needs mysql installation directory under the lib and include files in that folde