How does HarmonyOS shut down the program?

When switching applications on a mobile phone, most people are used to returning to the desktop and opening another application. These applications will always run in the background, consuming power and generating heat. So how did HarmonyOS shut down the program?

How does HarmonyOS shut down the program? 1. Slide up from the middle position at the bottom of the screen and hold for 1 sec (when navigating by gesture) or click the box key at the bottom of the screen (when virtual navigation key) to bring up the background application.

2. Simply slide the program to be cleared, or click the trash can icon below to clear all programs.

Taking Huawei mate40pro as an example, this paper applies it to HarmonyOS System 2.0.