python 连接 mysql 函数

 用于pyhon连接mysql的函数，可传入sql语句、和where等参数

#!/usr/bin/python
# -*- coding: UTF-8 -*-

import MySQLdb

def mysql_select(sql,parm):
        '''这是查询使用的函数'''
        #global data
        db = MySQLdb.connect("localhost", "root", "123456", "python", charset='utf8' )
        cursor = db.cursor(cursorclass = MySQLdb.cursors.DictCursor)
        cursor.execute(sql,parm)
        data = cursor.fetchall()
        cursor.close()
        db.close()
        return data
def mysql_insert(sql,parm):
        #global data
        db = MySQLdb.connect("localhost", "root", "123456", "python", charset='utf8' )
        cursor = db.cursor(cursorclass = MySQLdb.cursors.DictCursor)
        cursor.executemany(sql,parm)
        db.commit()
        cursor.close()
        db.close()
def mysql_update_del(sql,parm):
        #global data
        db = MySQLdb.connect("localhost", "root", "123456", "python", charset='utf8' )
        cursor = db.cursor(cursorclass = MySQLdb.cursors.DictCursor)
        cursor.execute(sql,parm)
        db.commit()
        cursor.close()
        db.close()
password = ('123456',)
select_sql = "select * from userinfo where password = %s"
delet_sql = "delete from userinfo where password = %s"
update_sql = "update  userinfo set password = %s"
insert_sql = "insert into userinfo(id,name,password) values(%s,%s,%s)"
id = [7,8,9]
user = ['user7','user8','user9']
pas = ['123456','123456','123456']
params = list(zip(id,user,pas))
print mysql_select.__doc__
#mysql_update_del(update_sql,password)
#mysql_insert(insert_sql,params)
for i in  mysql_select(select_sql,password):
        print i