1 import pymysql
 2 
 3 db = pymysql.connect(
 4     host='127.0.0.1',
 5     db='diag',
 6     user='root',
 7     passwd='root',
 8     charset='utf8',
 9     use_unicode=True
10 )
11 
12 cursor = db.cursor()
13 
14 sql = 'show tables from diag'
15 rows = cursor.execute(sql)  # 返回执行成功的结果条数
16 print(f'一共有 {rows} 张表')
17 for d in cursor.fetchall():
18     name: object = d[0]
19     # print(name)
20     if "msg" in name:
21         sql = "DROP TABLE IF EXISTS {}".format(name)
22         try:
23             cursor.execute(sql)
24             print('table：{}--已被删除'.format(name))
25         except Exception as e:
26             print(e)
27