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刚创建的github版本库，在push代码时出错：
o https://[email protected]/backend/weather/weather.git
! [rejected] master -> master (non-fast-forward)
error: failed to push some refs to 'https://[email protected]/backend/weather/weather.git'
hint: Updates were rejected because the tip of your current branch is behind
hint: its remote counterpart. Integrate the remote changes (e.g.
hint: 'git pull ...') before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.有如下几种解决方法：
1.使用强制push的方法：
$ git push -u origin master -f
这样会使远程修改丢失，一般是不可取的，尤其是多人协作开发的时候。
2.push前先将远程repository修改pull下来
$ git pull origin master
$ git push -u origin master
3.若不想merge远程和本地修改，可以先创建新的分支：
$ git branch [name]
然后push
$ git push -u origin [name]