解决$ git statusOn branch masterChanges not staged for commit: (modified content, untracked content)报错

是这么个情况：

$ git commit -m "message"
On branch master
Changes not staged for commit:
  (use "git add <file>..." to update what will be committed)
  (use "git restore <file>..." to discard changes in working directory)
  (commit or discard the untracked or modified content in submodules)
        modified:   file01 (modified content)
        modified:   file02 (modified content, untracked content)
        modified:   file03 (untracked content)
        modified:   file04 (modified content)

no changes added to commit (use "git add" and/or "git commit -a")

解决办法：
cd 每一个file，然后再 git add . 再  gitcommit

完成