Python学习第二天-编写购物车
2021-06-27 11:03
标签：invalid product lis 需求 [] 直接 style use choice 需求:1.启动程序后，让用户输入工资，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，检测余额是否够，够就直接扣款，不够就提醒 4.可随时退出，退出时，打印已购买商品和余额 Python学习第二天-编写购物车 标签：invalid product lis 需求 [] 直接 style use choice 原文地址：https://www.cnblogs.com/fameg/p/9652190.html# Author: zfh
#-*-coding:utf-8-*-
product_list = [
(‘Oracle book‘,100),
(‘pencil‘, 10),
(‘rule‘,100),
(‘iphone‘,2000),
(‘box‘,200)
]
shopping_list = []
shopping_cost = 0
shopping_num = 0
i = 0
while i :
salary = input("Input your salary:")
if salary.isdigit():
salary = int(salary)
while True:
for index,item in enumerate(product_list):
print(index,item)
user_choice = input("Please choice >>>:")
if user_choice.isdigit():
user_choice = int(user_choice)
if user_choice and user_choice >= 0:
p_item = product_list[user_choice]
if p_item[1] salary:
shopping_list.append(p_item)
salary -= p_item[1]
shopping_cost += p_item[1]
shopping_num += 1
print("Added %s into shopping cart,your current balance is \033[31;1m %s \033[0m" %(p_item,salary))
else:
print("\033[41;1m你的余额只剩[%s]" % salary)
else:
print("商品不存在，请重新选择！".center(50,‘-‘))
elif user_choice == ‘q‘:
print("shopping_list".center(50,‘-‘))
for p in shopping_list:
print(p)
print("共花费 %s 元," % shopping_cost,"共购买件 %s 商品" % shopping_num)
print("Your current balance:",salary)
exit()
else:
print("invalid option".center(50,‘-‘))
else:
print("输入错误，请重新输入金额".center(50,‘-‘))
i += 1