安装YouCompleteMe

1. from software center

1 $ apt-get install vim vim-youcompleteme vim-addon-manager

2 $ vam install youcompleteme

3 修改 /usr/lib/vim-youcompleteme/ycm_extra_conf.py

   参考 https://github.com/Valloric/YouCompleteMe#completion-doesnt-work-with-the-c-standard-library-headers

https://github.com/Valloric/ycmd/blob/master/cpp/ycm/.ycm_extra_conf.py

   $ echo | clang -v -E -x c++ -

4 下面是个人在.vimrc中的配置

"----------------youcompleteme config------------------------------
let g:ycm_autoclose_preview_window_after_insertion=1
"let g:ycm_seed_identifiers_with_syntax=1
"let g:ycm_cache_omnifunc=0
"nnoremap <C-]> :w<CR>:YcmCompleter GoToDefinitionElseDeclaration<CR>
nnoremap <C-]> :YcmCompleter GoToDefinitionElseDeclaration<CR>
let g:ycm_key_invoke_completion='<S-Space>'

5 若你设置了 let g:ycm_autoclose_preview_window_after_insertion=1 

那么会有一个问题，软件源中的vim-youcompleteme版本可能较低，是有bug的，得修改一个脚本

https://github.com/Valloric/YouCompleteMe/pull/1103/files

2. from https://github.com/Valloric/YouCompleteMe

1. vundle

2. after vundleinstall,

in bottom line: ycm....[so|a|..] and another lib is missing , you don't care it.

you had better do ( maybe vundle is some error) the following cmd in   .vim/bundle/YouCompleteMe/

$ git submodule update --init --recursive

wait about one hour

3. llvm+clang

4 config, make etc.

大家在安装过程中有任何问题，可以在下面回复。