问题
The menu in Atom text editor is gone. I dont know how I disabled it. I tried F1-12 keys. How do I re enable it? Here's how it's looking now:

回答1:
Open Atom and press ALT key you are done.
回答2:
Temporarily show Menu Bar on ATOM:
Press ALT
Key to make the Menu bar appear but it is not permanent.
Always display the Menu Bar on ATOM:
To make the change permanent, press ALT + V
and then select Toggle Menu Bar
option from the "View" drop-down down.
[Tested on ATOM running on Ubuntu 16.04]
回答3:
Press Alt + v and select Toggle menu bar option.
回答4:
Get cursor on top, where white header with file name, then press Alt. To set top menu by default always visible. You needed in top menu selected: FILE -> Config... -> autoHideMenuBar: true (change it to autoHideMenuBar: false) Save it.
回答5:
Open atom editor and then press Alt and menu bar will appear. Now click on View tab and then click on Toggle Menu Bar as seen on this screenshot.
回答6:
CONTROL + SHIFT + P and execute command "Tree View: Show"
回答7:
Same happened to me, I had to go into Packages and re-enable Tabs and Tree-View (both part of core).
来源:https://stackoverflow.com/questions/29159379/atom-menu-is-missing-how-do-i-re-enable