After remove all pending changes from git, all of my files have been deleted, is there anyway to get them back?
If you have deleted your files after running a `git reset --hard` command, it is possible that the deleted files still reside in the Git repository's history. In that case, you can try to restore the deleted files from the Git history.

To restore deleted files from the Git history, you can use the `git checkout` command and specify the commit hash where the files were present. For example:

```git checkout <commit_hash> -- path/to/deleted/file```

Another option is to use the `git reflog` command to find the commit where the files were present, and then use `git checkout` as described above.

It's important to note that the changes you make to the restored files will be in a separate branch and won't affect the current branch, so you will have to create a new branch and merge the changes if needed.

If you don't have a recent backup, these steps may not recover your deleted files, so it's important to always keep backups of important data.