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 <F4> :call TitleDet()<cr>'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