github上的版本和本地版本冲突的解决方法（Updates were rejected because the tip of your current branch is behind）

问题描述：

Updates were rejected because the tip of your current branch is behind

情景：

在github或coding上创建项目，然后本地git init

然后没有git pull -f --all

导致github上的版本里有readme文件和本地版本冲突，下面给出冲突原因：

[master][~/Downloads/ios] git push -u origin master

Username for 'https://github.com': shiren1118
Password for 'https://shiren1118@github.com': 
To https://github.com/shiren1118/iOS_code_agile.git
 ! [rejected]        master -> master (non-fast-forward)
error: failed to push some refs to 'https://github.com/shiren1118/iOS_code_agile.git'
hint: Updates were rejected because the tip of your current branch is behind
hint: its remote counterpart. Merge the remote changes (e.g. 'git pull')
hint: before pushing again.
hint: See the 'Note about fast-forwards' in 'git push --help' for details.

查看大部分资料，只有这个有用

http://www.cnblogs.com/xwdreamer/archive/2012/05/29/2523958.html

勾选强制覆盖已有的分支（可能会丢失改动），再点击上传，上传成功。

只有这句是核心，所以，本人就略微想了一下

[master][~/Downloads/ios] git push -u origin master -f 

原文地址：https://blog.csdn.net/shiren1118/article/details/7761203