#流程:显示购物单,提醒选择加入购物车,余额不足,退出购物 product_list = [ ("Mac",9000), ("tesla",11000), ("python book",50), ("bike",194), ("kindle",2400), ] #显示购物单 saving = input("请存入金额:") if saving.isdigit(): saving = int(saving) for i , v in enumerate(product_list,1) : print( i, v ) shopping_cart = [] #提醒选择选择加入购物车 while True: choice = input("前选择商品序号,退出[q]") if choice.isdigit(): choice = int(choice) if 0 < choice <= len(product_list): p_item = product_list[choice] if saving >= p_item[1]: shopping_cart.append(p_item) saving = saving - p_item[1] else : print("余额不足,还剩%s元钱"%saving) else : print("请输入正确序号") elif choice == "q": #余额不足,退出购物 print("购物单如下") for i in shopping_cart: print( i ) print("您还剩%s元钱"%saving) break else : print("请输入正确内容")
购物车简单程序
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转载自blog.csdn.net/ryzreal/article/details/80755918
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