Git has something called a 'detached HEAD' that bears some explanation. Youare told 'do not commit on a detached HEAD', and it is not always clear whator why this is.

开始主要讲git的原理，讲HEAD指针。

反正，最重要的东西在最后：


git reflog show HEAD@{now} -10

dcd215b... HEAD@{5 minutes ago}: commit (amend): 0-terminology: the malloc analogy added, plus
5ce8bfe... HEAD@{11 minutes ago}: commit: 0-terminology: the malloc analogy added, plus
3d93420... HEAD@{11 minutes ago}: rebase -i (pick): updating HEAD
7fdae94... HEAD@{11 minutes ago}: checkout: moving from master to 7fdae94815d6c676742c9984132b7b9e71a57f98
3d93420... HEAD@{13 minutes ago}: rebase -i (squash): updating HEAD
c55900c... HEAD@{13 minutes ago}: rebase -i (pick): updating HEAD
7fdae94... HEAD@{13 minutes ago}: checkout: moving from master to 7fdae94815d6c676742c9984132b7b9e71a57f98
e9955c8... HEAD@{14 minutes ago}: commit: s
97ab644... HEAD@{20 minutes ago}: commit: autogen
c55900c... HEAD@{23 minutes ago}: commit (amend): 0-terminology: the malloc analogy added, plus

Now you look at this, decide which one you want, and grab it:

git branch thank_God_its_safe 7fdae94
# like 'thank_God_its_safe = 0x7fdae94815d6c676742c9984132b7b9e71a57f98'
git checkout thank_God_its_safe 
 

 

 

from:http://blog.csdn.net/raining_heart/article/details/8569904
 
  
  
 
 Logo 
开放原子开发者工作坊
 
开放原子开发者工作坊旨在鼓励更多人参与开源活动，与志同道合的开发者们相互交流开发经验、分享开发心得、获取前沿技术趋势。工作坊有多种形式的开发者活动，如meetup、训练营等，主打技术交流，干货满满，真诚地邀请各位开发者共同参与！
 
 
  
更多推荐
  
 
以智能 致世界 | 操作系统大会2024议程全览

 
 
 
avatar 开放原子开发者工作坊
 
 
开放原子开源基金会新增捐赠人（2024年9月）

 
2024年9月，新增以下单位成为开放原子开源基金会及旗下项目捐赠人。
 
avatar 开放原子开发者工作坊
 
 
2024开放原子开发者大会议题征集正式开启

 
2024开放原子开发者大会（以下简称“大会”）将于12月中旬重磅来袭,2024开放原子开发者大会议题征集正式开启!
 
avatar 开放原子开发者工作坊