Beijing Municipal Traffic card balance reminder

I made a small ASP. NET application and reminded me of the balance of the Beijing Municipal Traffic card. Although I don't care about the amount of money, it will be embarrassing to have no money in the bus card, and it will affect people who get on the bus later. So I always think about the balance in the card. How nice would it be to remind me like a mobile phone?

So from the idea to the design, to the Code, to the debugging, to find the server, to the operation and maintenance, a person has been busy for nearly a month, and finally completed. The principle is very simple. I used it as an API because the website with a one-card balance does not have a verification code. The page is also designed by me, although not very nice. However, this item may be questioned because it is used to register a free email address of a mobile phone service provider. Therefore, it is only available for trial use among friends. You can also try it if you are in Beijing. Http://1kt.webhop.net

If you have any questions, contact me at any time.