先查询libmysqlclient.so.18路径，假设为/usr/local/mysql/lib/

> 32位系统

ln -s /usr/local/mysql/lib/libmysqlclient.so.18.0.0 /usr/lib/libmysqlclient.so.18

> 64位系统

ln -s /usr/local/mysql/lib/libmysqlclient.so.18.0.0 /usr/lib64/libmysqlclient.so.18