How to solve the problem when the IDEA project code github is updated and local uncommitted changes are overwritten?

When I did git pull today, I found that all the locally modified code was overwritten.

Solution:

Class to be restored -> Right-click -> Local History-> Show History-> Right-click the version to be restored -> Revert

But there are too many files, and it is very troublesome to restore them one by one. I asked my colleagues and recorded the solution.

• Right click-》git-》repository-》stash Changes
  
• Give the content to be saved a name
• Update code from GitHub
• Right click-》git-》repository-》UnStash Changes
  
• Then click Apply Stash