【Git】Updates were rejected because the remote contains work that you do

使用git push -u origin master，把本地代码推送到远程仓库，出现如下错误

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.
 

这是因为本地的代码不是最新的，把远程master最新的代码更新到本地就可以了，

使用命令： git pull origin master 

之后又出现了错误：fatal: refusing to merge unrelated histories

解决方法：使用以下命令，强制合并

git pull origin master --allow-unrelated-histories

后面加上 --allow-unrelated-histories ， 把两段不相干的 分支进行强行合并

后面再push就可以了