mysql 用户

1.删除用户：drop user 'name'@'localhost';    @前后的＇＇或者＂＂不可少

　　drop不了，使用delete:delete　from　mysql.user where user='name' and host='localhost';

　　flush privileges;

2.grant　all privileges on *.* to 'root'@'10.0.0.%' identified by 'pass';