使用git push直接推送未关联分支的时候，出现如下提示：
$ git push
Counting objects: 46, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (7/7), done.
Writing objects: 100% (7/7), 761 bytes | 0 bytes/s, done.
Total 7 (delta 5), reused 0 (delta 0)
remote: Resolving deltas: 100% (5/5)
remote: Processing changes: refs: 1, done
To ssh://yiyangzhang@code.ctripcorp.com:29418/UED/Flight/UED.Flight.online
b74697a..8408b72 giftReplaceCoupons -> giftReplaceCoupons
! [rejected] master -> master (fetch first)
error: failed to push some refs to 'ssh://yiyangzhang@code.ctripcorp.com:29418/UED/Flight/UED.Flight.online'
hint: Updates were rejected because the remote contains work that you do
hint: not have locally. This is usually caused by another repository pushing
hint: to the same ref. You may want to first integrate the remote changes
hint: (e.g., 'git pull ...') before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.
然后运行 git status 的时候，出现如下提示：
$ git status
On branch giftReplaceCoupons
Your branch is up-to-date with 'origin/giftReplaceCoupons'.It took 2.27 seconds to enumerate untracked files. 'status -uno'
may speed it up, but you have to be careful not to forget to add
new files yourself (see 'git help status').
nothing to commit, working directory clean
使用git push指定远程仓库的时候，提示如下：
$ git push origin master
Counting objects: 53, done.
Delta compression using up to 4 threads.
Compressing objects: 100% (7/7), done.
Writing objects: 100% (8/8), 764 bytes | 0 bytes/s, done.
Total 8 (delta 6), reused 0 (delta 0)
remote: Resolving deltas: 100% (6/6)
remote: Processing changes: refs: 1, done
To ssh://yiyangzhang@code.ctripcorp.com:29418/UED/Flight/UED.Flight.online
2507930..477a26e master -> master
