用git命令
>git branch -D master //删除master分支
//Deleted branch master <was b579c7d>.
>git push origin :master
删除远程的master一直报错：
remote:error:refusing to delete the current branch:refs/heads/master To git@github.com:username/projectname.git
![remote rejected] master <deletion of the current branch prohibited>
error:failed to push some refs to 'git@github.com:username/projectname.git'
在stackover找到了解决方法: 传送门
先在github页面该项目右侧的setting中将默认的分支设置为非删除的分支，这样才能执行删除。
>git push origin :master
///To git@github.com:flyher/shumeipai.git
/// -[deleted] master
删除成功。