python3 操作sqlSever

#coding =utf-8
import os
import pyodbc
import time
class SqlDb:


    def __init__(self, server=‘DESKTOP-94P70L6‘, database=‘ott‘, userid=‘sa‘, password=‘password‘):
        ‘‘‘‘‘ initialization ‘‘‘
        self.server = server
        self.database = database
        self.userid = userid
        self.password = password

    def __GetConnect(self):
        ‘‘‘‘‘ Connect to the DB ‘‘‘
        if not self.database:
            raise (NameError, "no setting db info")
        self.conn = pyodbc.connect(DRIVER=‘{SQL Server Native Client 10.0}‘, SERVER=self.server, DATABASE=self.database, UID=self.userid,
                                   PWD=self.password, charset="UTF-8")
        # self.conn = "DRIVER={SQL Server Native Client 10.0};SERVER=%s;DATABASE=%s;UID=%s;PWD=%s" % (self.server,self.database,self.userid,self.password)
        cur = self.conn.cursor()
        if not cur:
            raise (NameError, "connected failed!")
        else:
            return cur

    def ExecQuery(self, sql):
        ‘‘‘‘‘ Perform one Sql statement ‘‘‘
        cur = self.__GetConnect()
        cur.execute(sql)
        ret = cur.fetchall()
        cur.close()
        self.conn.close()
        return ret

    def ExecNoQuery(self, sql):
        ‘‘‘‘‘ Person one Sql statement like write data, or create table, database and so on‘‘‘
        cur = self.__GetConnect()
        cur.execute(sql)
        self.conn.commit()
        cur.close()
        self.conn.close()