#在控制台上输入
bash$ mysql -u root mysql
#用mysql客户程序
mysql> UPDATE user SET password=PASSWORD("new password") WHERE user='Alice';
mysql> FLUSH PRIVILEGES;
mysql> QUIT
#在控制台上输入
bash$ mysql -u root mysql
mysql> SET PASSWORD FOR hunte=PASSWORD('new password');
mysql> QUIT
#直接在控制台上输入
bash$ mysqladmin -u root "old password" "new password"
