product_list = [
('IPhone',5800),
('Mac Pro',12000),
('Starbuck Latte',31),
('Alex Python',81),
('Bike',800)
]
shopping_list = []
salary = input('Input your salary:')
if salary.isdigit():
salary = int(salary)
while True:
for index ,item in enumerate(product_list):
#print(product_list.index(item),item)
print(index,item)
user_choice = input("选择买啥？>>>:")
if user_choice.isdigit():
user_choice = int(user_choice)
if user_choice < len(product_list) and user_choice >= 0 :
p_item = product_list[user_choice]
if p_item[1] <= salary: #买的起
shopping_list.append(p_item)
salary -=p_item[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]啦，请选择其他商品！\033[0m" % salary)
else:
print("product code [%s] is not exist!"% user_choice)
elif user_choice == 'q':
print("-----------------shopping list---------------")
for p in shopping_list:
print(p)
print("Your current balance:",salary)
exit()
else:
print("\033[41;1minvalid optin!\033[0m")
else:
print("输入非法，退出！")
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