Python3.0 操作MySQL数据库执行SQL语句

py3不支持MySQLdb，需要导入pymysql模块

 # coding: utf-8
 # Team : Quality Management Center
 # Author：Carson
 # Date ：2019/6/20 17:52
 # Tool ：PyCharm

 import pymysql

 class MysqldbHelper(object):

     def __init__(self, host='数据库地址', username='登录名', password='密码', port='端口',  database='库名称', charset='utf8'):
         self.host = host
         self.username = username
         self.password = password
         self.database = database
         self.port = port
         self.con = None
         self.cur = None
         self.charset = charset
         try:
             self.con = pymysql.connect(host=self.host, user=self.username, passwd=self.password, port=self.port, db=self.database)
             # 所有的查询，都在连接 con 的一个模块 cursor 上面运行的
             self.cur = self.con.cursor()
         except:
             print("DataBase connect error,please check the db config.")

     def execute(self, sql):

         sql = sql
         try:
             self.cur.execute(sql)
             results = self.cur.fetchall()
             print(results)
             self.cur.close()
         except pymysql.Error as e:
             error = 'MySQL execute failed! ERROR (%s): %s' % (e.args[0], e.args[1])
             print(error)