:start
set/p down_folder=下载文件夹名称：
set path=D:\phpnow\htdocs\down\%down_folder%\php\include\
if [not] exist %path% (
    echo 没有这个文件夹
    goto start
)
copy extend.func.php %path%
copy extend.func.php D:\phpnow\htdocs\cms56\include\
copy extend.func.php D:\phpnow\htdocs\mycenter\codes\include\
pause