atm-interface-shopping

from db import db_handler
from interface import bank

def shopping_interface(name, cost, shoppingcart):
    flag,msg = bank.consume_interface(name,cost)
    if flag:
        dic = db_handler.select(name)
        dic[‘shoppingcart‘] = shoppingcart
        db_handler.save(dic)
        return True, ‘购买成功‘
    else:
        print(msg)


def check_shoppingcart(name):
    dic = db_handler.select(name)
    return dic[‘shoppingcart‘]

atm-interface-shopping

原文：https://www.cnblogs.com/wangcheng9418/p/9221766.html