+let g:ycm_global_ycm_extra_conf = '~/.vim/bundle/YouCompleteMe/third_party/ycmd/cpp/ycm/.ycm_extra_conf.py'
+" this is fix youcompleteme python error
+"http://www.cnblogs.com/clivelee/p/4266559.html
+"https://github.com/Valloric/YouCompleteMe/issues/18
+let g:ycm_path_to_python_interpreter= '/System/Library/Frameworks/Python.framework/Versions/2.7/bin/python'