exit()
print ("正在退出")
print ("输入有误,请重新编号")
else:
exit()
print('你的余额为',salary)
print(p)
for p in shopping_list:
print ('----shopping list----')
elif user_choice == 'q':
print('你购买的商品不存在')
else:
print('你已经购买了 %s, 您的余额为 %s' %(item,salary))
salary -= p_item[1]
shopping_list.append(item)
else:
print('余额不足')
if p_item[1] > salary:
p_item = product_list[user_choice]
if user_choice >= 0 and user_choice
user_choice = int(user_choice)
if user_choice.isdigit():
user_choice = input('请输入你要购买的商品号:')
print (product_list.index(item),item)
for item in product_list:
while True:
salary = int(salary)
if salary.isdigit():
salary = input("请输入你的工资:")
#判断工资是否为数字
shopping_list=[]
]
('bike',800),
('watch',10600),
('book',10),
product_list = [('Iphone',5000),
#AUTHOR:duwentao
#-*-coding=utf-8 -*-
#!/usr/bin/env python
原文:http://blog.51cto.com/tdcqvip/2053893
来源: http://www.bubuko.com/infodetail-2438265.html