Python 购物车

Posted 2020-10-31 huangxd

product_list = [
    (‘iphone‘,8000),
    (‘Mac Pro‘,9800),
    ("Bike",3000),
    ("Watch",10000),
    ("Cofee",30),
    ("Book",100),
]                    #定义商品列表
shoppint_list = []   #购物车空列表
while True:
    salary  = input("Input you salary:")       #输入预算
    if salary.isdigit():                       #isdigit 整数
        salary = int (salary)
        while True:                            #循环
            # for item in product_list:
            #     print(product_list.index(item),item)
            for index,item in enumerate(product_list):    #下标做产品编号、 enumerate取出列表下标
               print(index,item)                          #index下标、item数据
            user_choice = input("选择买什么东西>>>：")    #用户输入
            if user_choice.isdigit():                     #整数编码
                user_choice = int(user_choice)
                if user_choice < len(product_list) and user_choice >-0:              #商品取值范围
                    p_item = product_list[user_choice]
                    if p_item[1] <= salary :
                        shoppint_list.append(p_item)
                        salary -= p_item[1]
                        print("Added %s into shopping cart,your current balance is %s" %(p_item,salary) )
                    else:
                        print("\033[41;1m你的余额只剩[%s]了，还买个鸡腿\033[0m" %(salary))     # "\033[[\033[Om" 加亮色
                else:
                    print("商品不存在")
            elif user_choice == ‘q‘:
                print("----商品列表------")
                for p in shoppint_list:
                    print(p)
                print("you current balance:",salary)
                exit()
            else:
                print("invalid option")
    else:
        print("请输入数字")