MAC OS shortcut keys

System

(option+) Command+space Switching Input Method
Command+tab switching between different applications
Command+tab to switch between different windows within an app
Command+shift+3 Intercept the entire screen
Command+shift+4 Intercept Selection Area
Command+shift+4,+spcae Intercept Selection window
Command+shift+y to produce notes with selected text

General

command+m Minimized window (Tray display minimized window)
Command+h Hidden window (tray does not show minimized window)
Command+n New
Command+t new Tab
Command+f Search
Command+o Open
Command+s Save
Command+shift+s Save As
Command+p Printing
Command+w Closing Documents/tabs
Command+q exit
Command+option+esc Force Quit Program
option+ Mouse Drag and drag to copy instead of move

Finder (Desktop)

Space View basic information
Command+i Show Introduction File | Right-click Introduction
Command+a Select All
Command+c replication
Command+v paste
Command+d Copy
Command+option+v Cut Paste
Command+delete Delete
Command+shfit+delete empty the Trash, you need to confirm
Command+shfit+option+delete emptying the Trash cans
Command+shift+g to the designated directory (go to folder)
Command+shift+h to the home directory (to personal)
Command+shift+d to the desktop
Command+shift+l to download directory
Enter/return Edit the selected object name

Browser

command+= magnification
command+-shrinking
Command+r Refresh

MAC OS shortcut keys