购物车程序

Posted 2020-11-24 python-beginner

#_*_coding:utf-8_*_
#作者：王佃元
#日期：2019/12/7
‘‘‘
购物车程序思路
1.涉及元素：用户账户、购物车、商品列表、商品价格
用户账户：存放用户余额
购物车：存放用户购买商品
商品列表：存放购物中心商品
商品价格：存放商品价格
商品编号：用于客户选择

流程
显示商品信息：包含商品名称、包含商品价格    需要使用格式化输出
显示用户输入对话框：用户账户余额输入
显示用户购买商品对话框：用户选择商品编号

‘‘‘
# iphone6s = 6800
# mac_book = 9000
# coffee = 32
# python_book = 80
# bicyle = 1500
# commodity_list = ["iphone6s","mac book","coffee","python book","bicyle"]
# commodity_price = [6800,9000,32,80,1500]
# shopping_car = []
# # price_list = [6800,9000,32,80,1500]
# product_list = ‘‘‘
# ---------------shopping list---------------
# 1. %s               %d
# 2. %s               %d
# 3. %s               %d
# 4. %s               %d
# 5. %s               %d
# -------enter number to purchase------------
# ‘‘‘% (commodity_list[0], commodity_price[0], commodity_list[1], commodity_price[1], commodity_list[2], commodity_price[2], commodity_list[3], commodity_price[3], commodity_list[4], commodity_price[4])
# print(product_list)
#
# user_salary = int(input("please enter your salary : "))
#
# user_not_quit = True
# while user_not_quit:
#     prodcut_num = int(input("please enter the number : "))
#     if user_salary < commodity_price[prodcut_num-1]:
#         print("sorry,the salary is not enough!")
#         # print(commodity_price[prodcut_num])
#     else:
#         # print(commodity_list[prodcut_num-1])
#         shopping_car.append(commodity_list[prodcut_num-1])   #获取商品并加入购物车
#         user_salary = user_salary - commodity_price[prodcut_num-1]   #获取购买商品后剩余金额
#         # shopping_car.index("iphone6s")
#         print(‘‘‘
#         the shopping car :      %s
#         you account balance :   %d‘‘‘%(shopping_car[0:],user_salary))
#         quit_or_continue = input("enter ‘q‘ quit or enter any continue : ")
#         if quit_or_continue == "q":
#             print(‘‘‘
#             you have buy commodity :        %s
#             you account balance :           %d
#             welcom back!
#             ‘‘‘%(shopping_car,user_salary)
#             )
#             break
    # prodcut_num = int(input("please enter the number again : "))
commodity_list = [["iphone6s",6800],["mac book",9000],["coffee",32],["python book",80],["bicyle",1500]]
shopping_car = []
for product_list in commodity_list:
# price_list = [6800,9000,32,80,1500]
    product_list = ‘‘‘%d>   %s          %d‘‘‘% (commodity_list.index(product_list)+1,product_list[0],product_list[1])
    print(product_list,end="
")

user_salary = int(input("please enter your salary : "))
while True:
    prodcut_num = int(input("please enter the number : "))
    if user_salary < commodity_list[prodcut_num-1][1]:
        print("sorry,the salary is not enough!")
    else:
        shopping_car.append(commodity_list[prodcut_num-1][0])   #获取商品并加入购物车
        user_salary = user_salary - commodity_list[prodcut_num-1][1]   #获取购买商品后剩余金额
        # shopping_car.index("iphone6s")
        print(‘‘‘
        the shopping car :      %s
        you account balance :   %d
        ‘‘‘%(shopping_car[0:],user_salary))
        quit_or_continue = input("enter ‘q‘ quit or enter any continue : ")
        if quit_or_continue == "q":
            print(‘‘‘
            you have buy commodity :        %s
            you account balance :           %d
            welcome back!
            ‘‘‘%(shopping_car,user_salary))
            break