简述
开发过程中，可能因为某些原因需要修改已经commit的内容。
最近一次提交
执行git commit --amend，进入注释编辑界面。修改commit，保存提交。倒数第n次提交
这个不好描述，以示例来说明。
通过git log --oneline得到最近的提交如下：
007d82c (HEAD -> master) add:最近一次提交，即: HEAD~1e046fb1 add:倒数第2次提交，即: HEAD~210992f6 haha:倒数第3次提交，即: HEAD~3a538e21 add:倒数第4次提交，即: HEAD~4....
倒数第3次提交，因为粗心，将add写成了aad。
通过git rebase -i HEAD~3进入rebase界面：
pick 10992f6 haha:倒数第3次提交，即: HEAD~3pick e046fb1 add:倒数第2次提交，即: HEAD~2pick 007d82c add:最近一次提交，即: HEAD~1# Rebase a538e21..007d82c onto a538e21 (3 commands)## Commands:# p, pick = use commit# r, reword = use commit, but edit the commit message# e, edit = use commit, but stop for amending# s, squash = use commit, but meld into previous commit# f, fixup = like "squash", but discard this commit's log message# x, exec = run command (the rest of the line) using shell# d, drop = remove commit## These lines can be re-ordered; they are executed from top to bottom.## If you remove a line here THAT COMMIT WILL BE LOST.## However, if you remove everything, the rebase will be aborted.## Note that empty commits are commented out
将目标行的pick修改为edit或者reword，并修改后面的commit内容，修改完成之后如下：
edit 10992f6 add:倒数第3次提交，即: HEAD~3pick e046fb1 add:倒数第2次提交，即: HEAD~2pick 007d82c add:最近一次提交，即: HEAD~1# Rebase a538e21..007d82c onto a538e21 (3 commands)## Commands:# p, pick = use commit# r, reword = use commit, but edit the commit message# e, edit = use commit, but stop for amending# s, squash = use commit, but meld into previous commit# f, fixup = like "squash", but discard this commit's log message# x, exec = run command (the rest of the line) using shell# d, drop = remove commit## These lines can be re-ordered; they are executed from top to bottom.## If you remove a line here THAT COMMIT WILL BE LOST.## However, if you remove everything, the rebase will be aborted.## Note that empty commits are commented out
保存退出，完成修改。
**特别提示：**可以把HEAD~N中的N设置的大些，只要能包含目标提交即可。
修改多次提交
情景一：这些错误提交相互间隔较近
把HEAD~N中的N设置的大些，一次性把错误的提交都包含，通过一次rebase完成修改。
情景二：这些错误提交很分散
通过多次rebase完成修改。
