修改之前commit的文件，输入下面的而命令，可以查看文件的改动，输入下面命令。还可以采用git diff命令来看看具体修改了什么。
如果确认无误，添加add和提交commit文件。
git status On branch master Changes not staged for commit: (use "git add <file>..." to update what will be committed) (use "git checkout -- <file>..." to discard changes in working directory) modified: readme.txt no changes added to commit (use "git add" and/or "git commit -a")
git diff warning: LF will be replaced by CRLF in readme.txt. The file will have its original line endings in your working directory. diff --git a/readme.txt b/readme.txt index 46d49bf..9247db6 100644 --- a/readme.txt +++ b/readme.txt @@ -1,2 +1,2 @@ -Git is a version control system. +Git is a distributed version control system. Git is free software.
原文：https://www.cnblogs.com/cjvae/p/9164051.html