修改～/.vimrc配置文件，在文件中加入如下代码：
if filereadable("cscope.out")
cs add cscope.out
endif
这样做的目的是为了在每次使用vim打开文件是都输入命令 ：cs add cscope.out
如果想使用快捷键进行快捷查找的话，那么需要在~/.vimrc文件中加入如下代码：
if has("cscope")
set cscopetag " 使支持用 Ctrl+] 和 Ctrl+t 快捷键在代码间跳来跳去
"check cscope for definition of a symbol before checking ctags:
"set to 1 if you want the reverse search order.
set csto=1
" add any cscope database in current directory
if filereadable("cscope.out")
cs add cscope.out
" else add the database pointed to by environment variable
elseif $CSCOPE_DB !=""
cs add $CSCOPE_DB
endif
" show msg when any other cscope db added
set cscopeverbose
nmap <C-/>s :cs find s <C-R>=expand("<cword>")<CR><CR>
nmap <C-/>g :cs find g <C-R>=expand("<cword>")<CR><CR>
nmap <C-/>c :cs find c <C-R>=expand("<cword>")<CR><CR>
nmap <C-/>t :cs find t <C-R>=expand("<cword>")<CR><CR>
nmap <C-/>e :cs find e <C-R>=expand("<cword>")<CR><CR>
nmap <C-/>f :cs find f <C-R>=expand("<cfile>")<CR><CR>
nmap <C-/>i :cs find i ^<C-R>=expand("<cfile>")<CR>$<CR>
nmap <C-/>d :cs find d <C-R>=expand("<cword>")<CR><CR>
endif
