老男孩培訓練習購買商品
阿新 • • 發佈：2017-12-23
python#!/usr/bin/env python
#-*-coding=utf-8 -*-
#AUTHOR:duwentao
product_list = [
('Iphone',5000),
('book',10),
('watch',10600),
('bike',800),
]
shopping_list=[]
#判斷工資是否為數字
salary = input("請輸入你的工資：")
if salary.isdigit():
salary = int(salary)
while True:
for item in product_list:
print (product_list.index(item),item)
user_choice = input('請輸入你要購買的商品號：')
if user_choice.isdigit():
user_choice = int(user_choice)
if user_choice >= 0 and user_choice < len(product_list):
p_item = product_list[user_choice]
if p_item[1] > salary:
print('余額不足')
else:
shopping_list.append(item)
salary -= p_item[1]
print('你已經購買了%s,您的余額為%s' %(item,salary))
else:
print('你購買的商品不存在')
elif user_choice == 'q':
print ('----shopping list----')
for p in shopping_list:
print(p)
print('你的余額為',salary)
exit()
else:
print ("輸入有誤，請重新編號")
print ("正在退出")
exit()
老男孩培訓練習購買商品