• 重写最后一次提交的commit

   git commit --amend

   

• 修改多个历史

  git rebase -i HEAD~3

  命令执行后结果如下：

  pick f7f3f6d changed my name a bitpick 310154e updated README formatting and added blamepick a5f4a0d added cat-file# Rebase 710f0f8..a5f4a0d onto 710f0f8## Commands:#  p, pick = use commit#  e, edit = use commit, but stop for amending#  s, squash = use commit, but meld into previous commit## If you remove a line here THAT COMMIT WILL BE LOST.# However, if you remove everything, the rebase will be aborted.#

  将你想修改的每一次提交前面的pick改为edit

  edit f7f3f6d changed my name a bitpick 310154e updated README formatting and added blamepick a5f4a0d added cat-file

  当你保存并退出编辑器，Git会倒回至列表中的最后一次提交，然后把你送到命令行中，同时显示以下信息：

  $ git rebase -i HEAD~3Stopped at 7482e0d... updated the gemspec to hopefully work betterYou can amend the commit now, with       git commit --amendOnce you’re satisfied with your changes, run       git rebase --continue

  然后

  $ git commit --amend
  
  $ git rebase --continue

  ok一切搞定。

参照资料地址：http://git-scm.com/book/zh/ch6-4.html