https://www.cnblogs.com/fnlingnzb-learner/archive/2016/09/01/5830661.html
1.mysql -uroot -p (输入密码)
2.GRANT ALL PRIVILEGES ON *.* TO 'itoffice'@'%' IDENTIFIED BY 'itoffice' WITH GRANT OPTION;
3.flush privileges;
1.mysql -uroot -p (输入密码)
2.GRANT ALL PRIVILEGES ON *.* TO 'itoffice'@'%' IDENTIFIED BY 'itoffice' WITH GRANT OPTION;
3.flush privileges;