git如何移除某文件夹的版本控制

-n --dry-run 
Don’t actually remove any file(s). Instead, just show if they exist in the index and would otherwise be removed by the command.
-r 
Allow recursive removal when a leading directory name is given. 
--cached 
Use this option to unstage and remove paths only from the index. Working tree files, whether modified or not, will be left alone.

git rm -r -n --cached "bin/" //-n：加上这个参数，执行命令时，是不会删除任何文件，而是展示此命令要删除的文件列表预览。
git rm -r --cached  "bin/"      //最终执行命令. 
git commit -m" remove bin folder all file out of control"    //提交
git push origin master   //提交到远程服务器