这是一款第三方sdk，是用来集成即时通讯的 集成后可以进行单聊群聊(This is a third party SDK, is used to integrate instant messaging, integration can be a single chat, group chat)

这是leancound的接口文档说明集成后可以实现即时通讯功能(This is the leancound interface documentation, integration can be achieved after instant messaging)