Method 1:
Double click the virtual home key to pop up multitasking, and slide QQ music up.
Method 2:
After opening QQ music, click the three horizontal lines in the upper right corner; At the bottom of the new list, click Exit. Method 3:
Find the setting icon in the main interface; Click to enter the setting interface; Then pull down to find the "General" option; Then select "Auxiliary function", you can see that this button will be displayed on the screen after "assistive touch" is selected to open; click this button, then select the device, more and multi task in turn, select the program to exit, and then slide up as above.