在mysql中怎么添加用户名和密码

@>mysql -u root -p

@>密码

mysql>DELETE FROM user WHERE User="phplamp" and Host="localhost";

mysql>flush privileges;

//删除用户的数据库

mysql>drop database phplampDB;

@>mysql -u root -p

@>密码

mysql>update mysql.user set password=password('新密码') where User="phplamp" and Host="localhost";

mysql>flush privileges;