How to pay by bus in Hangzhou?

There are several ways to pay by bus in Hangzhou. The first way is to directly put 2 yuan coins into the coin box, the second way is to swipe the bus IC card, the third way is to swipe Alipay bus code or China UnionPay BRT code or WeChat, and the other way is to swipe the bank card with chip directly. There are four payment methods.