这些文件分别有什么作用呢？

category.php
config.php
index.php
news.php
site.php
viewnews.php
admin/
admin-html.php
admin-robots.php
admin-categorise.php
function/
admin.func.php
common.func.php
upload.func.php
language/
admincp.lang.php
mehemes/default/
header.html.php