创建mysql用户
1. create user '账户'@'%' identified by'密码';
2. 授权用户
grant all on *.* to '账户'@'%'; # 授权全部数据库
grant all on privileges on cheng.* to '账户'@'%'; # 后面的%表示允许在所有主机上登录
grant all on *.* to '账户'@'%'; # 授权全部数据库
grant all on privileges on cheng.* to '账户'@'%'; # 后面的%表示允许在所有主机上登录