1 import pymysql
 2 
 3 # 1. 创建连接
 4 conn = pymysql.Connect(
 5     host='数据库连接地址',
 6     user='账号',
 7     password='密码',
 8     db='库名',
 9     charset='utf8',
10 )
11 print(conn)
12 
13 # 2.创建游标
14 # 传递参数cursor=pymysql.cursors.DictCursor 返回的数据就是字典结构
15 cursor = conn.cursor(cursor=pymysql.cursors.DictCursor)
16 
17 # 3.执行SQL语句
18 res = cursor.execute('select * from table order by id desc limit 10')
19 print(res)   # 返回影响的数据条数，或查询的条数
20 
21 # 4.获取结果---默认情况下返回的是元组
22 one = cursor.fetchone()       # 获取一条
23 print(one)
24 three = cursor.fetchmany(3)   # 获取三条
25 print(three)
26 rest = cursor.fetchall()      # 获取所有
27 print(rest)
28 
29 # 5.关闭游标
30 cursor.close()
31 
32 # 6.关闭连接
33 conn.close()