git修改commit信息。

在Android Studio上面直接操作Version Control的reword是最直接的。

用git的方式来：

git rebase -i HEAD~1

打开了文本编辑器

pick 10130de msg

# Rebase da71f75..10130de onto da71f75 (1 command)
#
# 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
# l, label  = label current HEAD with a name
# t, reset  = reset HEAD to a label
# m, merge [-C  | -c ]  [# ]
# .       create a merge commit using the original merge commit's
# .       message (or the oneline, if no original merge commit was
# .       specified). Use -c  to reword the commit message.
#
# 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，关闭。
git显示命令：

$ git rebase -i HEAD~1
hint: Waiting for your editor to close the file...

然后打开了文本编辑器，显示的就是

msg
//提示信息

这里把msg改成123456798，然后保存，关闭。

$ git rebase -i HEAD~1
[detached HEAD 951f653] 123456789
 Date: Fri Jul 20 15:26:26 2018 +0800
 1 file changed, 0 insertions(+), 0 deletions(-)
 create mode 100644 新建文本文档.txt
Successfully rebased and updated refs/heads/master.

这个时候commit信息已经修改，并且也改了版本快照的hash值。