product_list = [
('iphone',50000),
('Mac Pro',9900),
('Bike',8000),
('Watch',160000),
('Coffee',600),
('lqgyc',1200)
]
shopping_list = []
salary = input("请输入工资:")
if salary.isdigit(): # isdigit() 方法检测字符串是否只由数字组成
salary = int(salary)
while True:
for index,item in enumerate(product_list):
print(index,item)
user_choice = input("请选择商品>>>")
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:
shopping_list.append(p_item)
salary -= p_item[1]
print("Added %s into shopping cart,your current balar:",salary)
else:
print("你的余额只剩[%s]啦,无法购买"% salary)
else:
print("product code [%s] is not exist !" % user_choice)
elif user_choice == 'q':
print('---商品列表！---')
for p in shopping_list:
print(p)
print("your current balance:", salary)
exit()
else:
print("请输入商品序列号！")
