Vim函数跳转定义无效 ： 配置报错

"自动添加tags文件  

 set tags+=./tags,./../tags,./../../tags,./../../../tags

我的vimrc文件 http://weiki.tk/file/.vimrc.html

" Sections:
"    -> Pathogen
"    -> General
"    -> Cscope
"    -> VIM user interface
"    -> TagbarToggle
"    -> Neocomplcache
"    -> ClangComplete
"    -> Neocomplcache-clang
"    -> GUI General Setting
"    -> Colors and Fonts
"    -> Files and backups
"    -> Text, tab and indent related
"    -> Visual mode related
"    -> Moving around, tabs and buffers
"    -> Status line
"    -> Editing mappings
"    -> vimgrep searching and cope displaying
"    -> Spell checking
"    -> Misc
"    -> Helper functions
"    -> Pydiction
"    -> Tabular
"    -> SingalComplile
"    -> Markdown

"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
" ==>  Cscope  
"""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""""
autocmd BufEnter * lcd %:p:h

map <F12> :call Do_CsTag()<CR>
nmap <C-@>s :cs find s <C-R>=expand("<cword>")<CR><CR>:copen<CR>
nmap <C-@>g :cs find g <C-R>=expand("<cword>")<CR><CR>
nmap <C-@>c :cs find c <C-R>=expand("<cword>")<CR><CR>:copen<CR>
nmap <C-@>t :cs find t <C-R>=expand("<cword>")<CR><CR>:copen<CR>
nmap <C-@>e :cs find e <C-R>=expand("<cword>")<CR><CR>:copen<CR>
nmap <C-@>f :cs find f <C-R>=expand("<cfile>")<CR><CR>:copen<CR>
nmap <C-@>i :cs find i ^<C-R>=expand("<cfile>")<CR>$<CR>:copen<CR>
nmap <C-@>d :cs find d <C-R>=expand("<cword>")<CR><CR>:copen<CR>
function Do_CsTag()
    let dir = getcwd()
    if filereadable("tags")
        if(g:iswindows==1)
            let tagsdeleted=delete(dir."\\"."tags")
        else
            let tagsdeleted=delete("./"."tags")
        endif
        if(tagsdeleted!=0)
            echohl WarningMsg | echo "Fail to do tags! I cannot delete the tags" | echohl None
            return
        endif
    endif
    if has("cscope")
        silent! execute "cs kill -1"
    endif
    if filereadable("cscope.files")
        if(g:iswindows==1)
            let csfilesdeleted=delete(dir."\\"."cscope.files")
        else
            let csfilesdeleted=delete("./"."cscope.files")
        endif
        if(csfilesdeleted!=0)
            echohl WarningMsg | echo "Fail to do cscope! I cannot delete the cscope.files" | echohl None
            return
        endif
    endif
    if filereadable("cscope.out")
        if(g:iswindows==1)
            let csoutdeleted=delete(dir."\\"."cscope.out")
        else
            let csoutdeleted=delete("./"."cscope.out")
        endif
        if(csoutdeleted!=0)
            echohl WarningMsg | echo "Fail to do cscope! I cannot delete the cscope.out" | echohl None
            return
        endif
    endif
    if(executable('ctags'))
        "silent! execute "!ctags -R --c-types=+p --fields=+S *"
        silent! execute "!ctags -R --c++-kinds=+p --fields=+iaS --extra=+q ."
    endif
    if(executable('cscope') && has("cscope") )
        if(g:iswindows!=1)
            silent! execute "!find . -name '*.h' -o -name '*.c' -o -name '*.cpp' -o -name '*.java' -o -name '*.cs' > cscope.files"
        else
            silent! execute "!dir /s/b *.c,*.cpp,*.h,*.java,*.cs >> cscope.files"
        endif
        silent! execute "!cscope -b"
        execute "normal :"
        if filereadable("cscope.out")
            execute "cs add cscope.out"
        endif
    endif
endfunction