彻底删除鲁大师，亲测W10成功

m0_51406412:

能问一下Traceback (most recent call last): File "C:\Users\DELL\PycharmProjects\Learn_Tkinterdemo\学习python\MySQLDemo\啦啦啦.py", line 4, in db = pymysql.connect(host="localhost", port=3306, user="root", password="19990722niuA！", db="TESTDB", charset="utf8") NameError: name 'pymysql' is not defined，这个问题如何解决吗