报错C:\Users\Administrator\PycharmProjects\pythonProject\venv\Scripts\python.exe C:/Users/Administrator/PycharmProjects/pythonProject/main.py Traceback (most recent call last): File "C:/Users/Administrator/PycharmProjects/pythonProject/main.py", line 3, in <module> conn = pymysql.connect(host='localhost', user='root', password='password') File "C:\Users\Administrator\PycharmProjects\pythonProject\venv\lib\site-packages\pymysql\connections.py", line 352, in __init__ self.connect() File "C:\Users\Administrator\PycharmProjects\pythonProject\venv\lib\site-packages\pymysql\connections.py", line 636, in connect self._request_authentication() File "C:\Users\Administrator\PycharmProjects\pythonProject\venv\lib\site-packages\pymysql\connections.py", line 911, in _request_authentication auth_packet = self._read_packet() File "C:\Users\Administrator\PycharmProjects\pythonProject\venv\lib\site-packages\pymysql\connections.py", line 729, in _read_packet packet.raise_for_error() File "C:\Users\Administrator\PycharmProjects\pythonProject\venv\lib\site-packages\pymysql\protocol.py", line 221, in raise_for_error err.raise_mysql_exception(self._data) File "C:\Users\Administrator\PycharmProjects\pythonProject\venv\lib\site-packages\pymysql\err.py", line 143, in raise_mysql_exception raise errorclass(errno, errval) pymysql.err.OperationalError: (1045, "Access denied for user 'root'@'localhost' (using password: YES)")

这个错误提示是因为连接MySQL数据库时，用户名或密码不正确，你需要检查一下你的用户名和密码是否正确。同时，也需要确保你的MySQL服务器已经启动，并且允许远程连接。

如果你忘记了MySQL的用户名和密码，可以尝试使用以下命令来重置密码：

1. 停止MySQL服务

sudo service mysql stop

2. 以跳过授权方式启动MySQL

sudo mysqld_safe --skip-grant-tables --skip-networking &

3. 使用root用户登录MySQL

mysql -u root

4. 切换到mysql数据库

use mysql;

5. 更新root用户的密码

update user set authentication_string=password('your_new_password') where user='root' and Host ='localhost';

6. 刷新权限

flush privileges;

7. 退出MySQL并重新启动服务

exit;
sudo service mysql start

然后，你可以使用新的密码来连接你的MySQL数据库了。