/learngit

Git is a distributed version control system.
Git is free software distributed under the GPL.
Git has a mutable index called stage.
A
B
note: 1、git diff 比较本地与stage区；git diff --cached 比较stage与版本库中
2、git rm并git commit了的东西，为何在git reflog中无法查看
3、git log是啥
4、如果以mxw登陆记录修改？
5、只要把每台电脑的Key都添加到GitHub，就可以在每台电脑上往GitHub推送（所以一个SSH密钥对应一台电脑？）

ggg
ggg_fixbug1