product_list = [
('Iphone',11800),
('Mac Pro',13800),
('BMW CAR',480000),
('Watch',10600),
('Coffee',31),
('fatyao Python book',35),
]
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("请选择要购买的商品？>>>:")
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，请及时充值\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("invalid option")