Mysterious number icon next to file name in PhpStorm [closed]

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I accidentally pushed a hotkey in PhpStorm, and now there is a little number icon next to one of my file names.

What does this mean, and how can I remove it?

Here's a screenshot:

回答1:

What does this mean

That's a Bookmark with Mnemonic -- basically, a numbered bookmark that can be quickly accessed from anywhere using that mnemonic as a key.

https://www.jetbrains.com/help/phpstorm/2016.2/navigating-with-bookmarks.html?search=bookmarks

and how can I remove it

Same way how you set it up. Few ways actually:

1. Bring Bookmarks screen in and remove any unwanted bookmark from there: Navigate | Bookmarks | Show Bookmarks (Shift + F11 using Default keymap on Linux/Windows)

2. Select that file in Project View panel and while focus is still there activate Navigate | Bookmarks | Toggle Bookmark with Mnemonic (Ctrl + F11 using Default keymap on Linux/Windows)

来源：https://stackoverflow.com/questions/38537483/mysterious-number-icon-next-to-file-name-in-phpstorm