Eclipse shortcut keys not working

          Today, the shortcut key of my colleague's eclipse is invalid. It used to conflict with the input method. It is enough to kill the shortcut key of the input method, but in the past, the shortcut key of the input method has been killed. I tried deleting the line ctrl+d, but it didn't work, I tried commenting alt+/, but it didn't work. Finally, I deleted the .metadata folder of the eclipse workspace. After deleting it, the previously loaded projects in eclipse are gone. You need to reconfigure the environment yourself, add projects, tomcat, etc.