出现问题'function' object has no attribute 'close'
#coding=utf-8 import sys import pymysql class TransferMoney(object): def __init__(self,conn): self.conn = conn def transfer(self,source_acctid,target_acctid,money): try: self.check_acct_available(source_acctid) self.check_acct_available(target_acctid) self.has_enough_money(source_acctid, money) self.reduce_money(source_acctid, money) self.add_money(target_acctid, money) self.conn.commit() except Exception as e: self.conn.rollback() raise e def check_acct_available(self, acctid): cursor = self.conn.cursor try: sql = "select * from account where acctid=%s" %acctid cursor.execute(sql) print("check_acct_available:"+sql) rs = cursor.fetchall() if len(rs) != 1: raise Exception("账号%s不存在" % acctid) finally: cursor.close() def has_enough_money(self, acctid, money): cursor = self.conn.cursor try: sql = "select * from account where acctid=%s and money>=%s" %(acctid,money) cursor.execute(sql) print("check_acct_available:"+sql) rs = cursor.fetchall() if len(rs) != 1: raise Exception("账号%s没有足够的钱" % acctid) finally: cursor.close() def reduce_money(self, acctid, money): cursor = self.conn.cursor try: sql = "update account set money=money-%s where acctid=%s" % (money,acctid) cursor.execute(sql) print("check_acct_available:"+sql) if cursor.rowcount != 1: raise Exception("账号%s减款失败" % acctid) finally: cursor.close() def add_money(self, acctid, money): cursor = self.conn.cursor try: sql = "update account set money=money+%s where acctid=%s" % (money,acctid) cursor.execute(sql) print("check_acct_available:"+sql) if cursor.rowcount != 1: raise Exception("账号%s加款失败" % acctid) finally: cursor.close() if __name__ == "__main__": source_acctid = sys.argv[1] target_acctid = sys.argv[2] money = sys.argv[3] conn = pymysql.connect( host = '127.0.0.1', user = 'root', password = 'sn957072', db = 'wangyou', port = 3306, charset = 'utf8' ) tr_money = TransferMoney(conn) try: tr_money.transfer(source_acctid,target_acctid,money) except Exception as e: print("出现问题"+str(e)) finally: conn.close()
求教大神,close属性存在问题,但是完全找不到