一个小实验
1、修改readme.txt文件
Git is a distributed version control system.
Git is free software distributed under the GPL.
Git has a mutable index called stage
Git tracks changes.
2、将修改添加到暂存区
git add readme.txt
3、再修改readme.txt文件
Git is a distributed version control system.
Git is free software distributed under the GPL.
Git has a mutable index called stage
Git tracks changes of files.
4、将修改提交到master分支
可以发现第二次提交并没有提交到master分支。
5、查看master分支和工作区的区别
所以第二次修改确实没有提交。
6、解决方法：
第一次修改 → git add → 第二次修改 → git add → git commit
