问题
I use Google Chrome Developer Tools all the time. Suddenly, the toolbar icons went away. They used to be above each of Elements, Resources, etc... and now they are gone. I guess this is okay because I didn't need them in the first place. But, is there a way to turn them back on?
回答1:
This happened to me too the other day. It took me a while, but I finally found the spot where you can re-enable them: just go to the Developer Tools settings. Incidentally, there is a bunch of other cool stuff there, too.
To bring up the settings (I'm using version 25), click the gear icon on the bottom-right of Developer Tools window. On the left, click General. Under Appearance, you'll find a checkbox labeled Show toolbar icons.
Incidentally, be sure to check out the Shortcuts area if you like to navigate with the keyboard.
来源：https://stackoverflow.com/questions/15348919/in-google-chrome-developer-tools-the-toolbar-icons-disappeared-what-gives