git - no changes commit?

Question

There are changes and I have rescanned them
However, when committing, it shows no changes commit,
why??

Answer 1

1. never appearedno changes commit提示，我只看到过nothing to commit,working directory clean.和no changes added to commit (use "git add" and/or "git commit -a")

2. I would like to ask you how your prompt appeared and what is it commit之前没有git add啊？还有rescanfor? I haven’t used it before, you can share it