http://www.inferjay.com/blog/2014/07/18/use-homebrew-install-mongodb-at-the-mac-osx-10.9.4/
sudo chown -R username /data 给当前操作者加上权限
http://www.inferjay.com/blog/2014/07/18/use-homebrew-install-mongodb-at-the-mac-osx-10.9.4/
sudo chown -R username /data 给当前操作者加上权限