Commonly used shortcut keys:

Ctrl+l = ctrl+o-open

Ctrl+M-OK (equal to carriage return) in the web search box is to adjust the indentation of the whole paragraph in Word.

Ctrl+t- open a new tab.

Ctrl+u- In Word, it is to underline the selection.

effective range

System-level shortcut keys can respond globally, no matter where the current focus is and what programs are running, they can work when pressed; Application-level hotkeys only work in the currently active program. Hotkeys are invalid when the definition program to which they are applied is inactive or running in the background. Control-level hotkeys are only valid in the current control. Shortcuts for general systems and applications can be customized according to their own operating habits.