藏区二维码点餐系统软件要多少钱

The Tibetan dining system has a lot of different types of restaurants. How much does it cost to eat in a Tibetan restaurant and what is the Tibetan national ID card?

西藏二维码点餐系统内，有很多不同的饭店。每次吃饭需要多少钱，藏区统一二维码是怎么使用呢？