# 本钱

cart = {}

money_input = input("请输入您所拥有的金额：")

if money_input.isdigit():

    money = int(money_input)

    if money > 1000:

        print("土豪你好！请选择水果：")

    if money < 1:

        print("不用看了，你娃什么也买不起，走吧！")

    # 商品展示

product_list = [{'name': '香蕉', 'price': 3},

                {'name': '苹果', 'price': 2.5},

                {'name': '梨', 'price': 5},

                {'name': '橘子', 'price': 4},

                {'name': '柚子', 'price': 1.5}]

for a, dict in enumerate(product_list):

    print('序号：{}，名称：{}，单价：{}'.format(a, dict['name'], dict['price']))

# 选择商品

while 1:

    index_input = input('请输入序号：');

    if index_input.isdigit():

        index = int(index_input)

        if index >= 0 and index <= len(product_list):

            weight_input = input("请输入重量：")

            if weight_input.isdigit():

                weight = int(weight_input)

                price = product_list[index - 1]['price']

                total_money = price * weight

                if total_money <= money:

                    product_name = product_list[index - 1]['name']

                    had = cart.get('product_name')

                    if had:

                        has = cart[product_name]

                        cart = has + weight

                        print(cart)

                    else:

                        cart[product_name] = weight

                        print(cart)

                    money = money - total_money

                    print("找您零钱：", money)

                else:

                    print("您的余额不足，小老弟！")

                    break

            else:

                print("输入重量有误！")

        else:

            print("序号超出范围！")

    else:

        print("求求你输入正确的序号！")

else:

    print("请输入数字：")