vim自动生成main函数和自动添加注释

"进行版权声明的设置
"添加或更新头
map  :call TitleDet()'s
function AddTitle()
    call append( 0, "/*=============================================================================")
    call append( 1, "#       COPYRIGHT NOTICE")
    call append( 2, "#       Copyright (c) 2014")
    call append( 3, "#       All rights reserved")
    call append( 4, "#")
    call append( 5, "#       @author       :Shen")
    call append( 6, "#       @name         :")
    call append( 7, "#       @file         :".expand("%:p:h")."\\".expand("%:t"))
    call append( 8, "#       @date         :".strftime("%Y/%m/%d %H:%M"))
    call append( 9, "#       @algorithm    :")
    call append(10, "=============================================================================*/")
    call append(11, "")
    echohl WarningMsg | echo "Successful in adding the copyright." | echohl None
endfunction
"更新最近修改时间和文件名
function UpdateTitle()
    normal m'
    execute '/#       @date      /s@:.*$@\=strftime(":%Y-%m-%d %H:%M")@'
    normal ''
    normal mk
    execute '/#       @file      /s@:.*$@\=":".expand("%:p:h")."\\".expand("%:t")@'
    execute "noh"
    normal 'k
    echohl WarningMsg | echo "Successful in updating the copy right." | echohl None
endfunction
"判断前10行代码里面，是否有COPYRIGHT NOTICE这个单词，
"如果没有的话，代表没有添加过作者信息，需要新添加；
"如果有的话，那么只需要更新即可
function TitleDet()
    let n = 2
    "默认为添加
        let line = getline(n)
        let str = '^#       COPYRIGHT NOTICE$'
        if line =~ str
            call UpdateTitle()
            return
        endif
    call AddTitle()
endfunction