git切换到某个commit Id

1.git log //找到你的日志commit号为22dfbf1f907764c5ae70381b8191104f9af21d8c

2.git checkout 22dfbf1f907764c5ae70381b8191104f9af21d8c //切换到这个commit下
3.git checkout -b dev_2.0 22dfbf1f907764c5ae70381b8191104f9af21d8c //在本地新建一个dev_2.0分支
4.git branch //查看分支
5.git push --set-upstream origin dev_2.0 //将本地dev_2.0分支推到远程