self.connection = self.get_new_connection(conn_params)
File "C:\Users\Administrator\Desktop\pythonstudy\examination\venv\lib\site-packages\django\db\backends\mysql\base.py", line 274, in get_new_connection
conn = Database.connect(**conn_params)
File "C:\Users\Administrator\Desktop\pythonstudy\examination\venv\lib\site-packages\pymysql\__init__.py", line 90, in Connect
return Connection(*args, **kwargs)
File "C:\Users\Administrator\Desktop\pythonstudy\examination\venv\lib\site-packages\pymysql\connections.py", line 699, in __init__
self.connect()
File "C:\Users\Administrator\Desktop\pythonstudy\examination\venv\lib\site-packages\pymysql\connections.py", line 967, in connect
raise exc
django.db.utils.OperationalError: (2003, "Can't connect to MySQL server on 'localhost' ([WinError 10061] 由于目标计算机积极拒绝，无法连接。)")