mysql提示ERROR 1045 (28000): Access denied for user 'root'@'localhost' (using password: NO)

解决方案：

1.使用mysql -p登录mysql

# mysql -p

2.

mysql> set password for 'root'@'localhost' =password('yourpassword');

3.退出当前mysql

Ctrl-C

4.再次登录就不会提示该错误了