DingTalk backend is the backend of DingTalk software. When you exit this page, the software does not stop, but moves from the original page to the backend and runs in the backend. In order to prevent the phone from freezing, we must exit the software in time and not let it run in the background. We must clean it up in time. When the software is in the background, it can continue to run. We must choose whether to close it according to the situation.

It has a corresponding work background and needs to maintain the normal operation of the software