python操作mysql01

 1 # Author：CallMeV
 2 # DATE  ：2020-03-22
 3 # Time  : 18:03
 4 import mysql.connector
 5 
 6 """
 7 创建MySQL连接
 8 con = mysql.connector.connect(
 9     host = "localhost", port = "3306",
10     user = "root", password = "123456",
11     database = "demo"
12 )
13 """
14 # 第二种创建方式
15 config = {"host":"localhost", "port":3306,"user":"root", "password":"123456", "database":"demo"}
16 con = mysql.connector.connect(**config)
17 # 利用游标来执行sql语句
18 # 创建游标
19 cursor = con.cursor()
20 sql = "SELECT empno,ename,hiredate FROM t_emp;"
21 # 通过游标执行sql语句，结果集就保存在游标内
22 cursor.execute(sql)
23 for one in cursor:
24     print(one[0], one[1], one[2])
25 con.close()