python 购物小程序

要求：

　　 1、启动程序后，让用户输入预算，然后打印商品列表
　　 2、允许用户根据商品编号购买商品
　　 3、用户选择商品后，检测余额够不够，够就直接付款，不够就提醒
　　 4、可随时退出，推出时打印已购买商品和余额。

umberList = [1,2,3,4,5]
ProductList = ["iphone 13","Mac book","Mi 10","jacket","trousers"]
PriceList = [4999,9999,3899,168,138]
BudGet=int(input("Please enter your budget: "))
ShoppingList = []

while True:
    for i in range(5):
        print(NumberList[i],ProductList[i],PriceList[i])
    ComNum = int(input("Please enter the product number you need to purchase: "))
    if BudGet >= PriceList[ComNum-1]:
        BudGet = BudGet - PriceList[ComNum-1]
        ShoppingList.append(ProductList[ComNum-1])
        print("You have already purchased: ", ShoppingList)
        print("Your budget balance:", BudGet)
        Status = input("Exit this procedure(yes/no): ")
        if Status == "yes":
            print("You have already purchased: ", ShoppingList)
            print("Your budget balance:", BudGet)
            exit()
    else:
        print("Your budget is insufficient")
        Status = input("Exit this procedure(yes/no): ")
        if  Status == "yes":
            print("You have already purchased: ", ShoppingList)
            print("Your budget balance:", BudGet)
            exit()