在使用git commit时遇到错误：Your branch is up-to-date with 'origin/master'，根本原因是没有建立分支或者没有指定分支的问题。可使用以下方法解决。

新建一个分支

$ git branch busbranch

切换分支

$ git checkout busbranch

重新提交你的改动提交到新分支上

$ git add . 
$ git commit -m "my test commit"

合并到主仓库中

$ git checkout master 
$ git merge busbranch

最后可以push到服务器

$ git push -u origin master

所有的命令整理如下：

eddy@test-ppc MINGW64 /e/gitee/monsys (master)
$ git commit -m "my test commit"
On branch master
Your branch is up-to-date with 'origin/master'.

Changes not staged for commit:
        modified:   README.md

no changes added to commit

eddy@test-ppc MINGW64 /e/gitee/monsys (master)
$ git branch busbranch

eddy@test-ppc MINGW64 /e/gitee/monsys (master)
$ git branch
  busbranch
* master

eddy@test-ppc MINGW64 /e/gitee/monsys (master)
$ git checkout busbranch
Switched to branch 'busbranch'
M       README.md

eddy@test-ppc MINGW64 /e/gitee/monsys (busbranch)
$ git add .

eddy@test-ppc MINGW64 /e/gitee/monsys (busbranch)
$ git commit -m "my test commit"
[busbranch b6cd93d] my test commit
 1 file changed, 1 insertion(+), 1 deletion(-)

eddy@test-ppc MINGW64 /e/gitee/monsys (busbranch)
$ git checkout master
Switched to branch 'master'
Your branch is up-to-date with 'origin/master'.

eddy@test-ppc MINGW64 /e/gitee/monsys (master)
$ git merge busbranch
Updating bab41d0..b6cd93d
Fast-forward
 README.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

eddy@test-ppc MINGW64 /e/gitee/monsys (master)
$ git push -u origin master
Counting objects: 3, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (2/2), done.
Writing objects: 100% (3/3), 352 bytes | 352.00 KiB/s, done.
Total 3 (delta 0), reused 0 (delta 0)
remote: Powered by GITEE.COM [GNK-5.0]
To https://gitee.com/xxxxx/monsys.git
   bab41d0..b6cd93d  master -> master
Branch master set up to track remote branch master from origin.

eddy@test-ppc MINGW64 /e/gitee/monsys (master)

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