git:撤消上次提交并返回到当前版本

git checkout test~4 # go back to the revision _before_ the one you want to delete
git cherry-pick test~3..test # cherry pick the revisions after the one you want to delete
git branch -f test # move test pointer
git checkout test # checkout test

在这一点上,你的狗所做的应该从树枝上消失。