IDEA hint, format code, remove unused package shortcuts, MAVEN auto-pilot jar Package

First, prompt shortcut keys

Idea default Shortcut is Ctrl+space, usually conflicts with other software shortcut keys, so the shortcut key is modified to alt+/

Second, the format shortcut key ctrl+alt+l, usually and QQ, Tim shortcut keys conflict, please modify the QQ or Tim shortcut keys.

Third, automatically clear the imported non-use package, Ctrl+alt+o

Iv. maven automatically relies on jar packages

IDEA hint, format code, remove unused package shortcuts, MAVEN auto-pilot jar Package