MacOS show hidden files
Show hidden files under Windows can be found directly in the menu, but in MacOS I rummaged through all the options in the menu, there is nothing at all! You can't always check it with ls -a, it's very inconvenient.
In fact, there is a shortcut key to show hidden files in Finder: [command] + [shift] + [.]
The position of the last key is at the bottom right of the L key