discuz与帝国混合安装，论坛部分独立出来换二级域名，nginx301跳转规则

解决方法：

rewrite ^([^\.]*)/forum-(\w+)-([0-9]+)\.html$ https://club.zbapk.com/forum-$2-$3.html permanent;
rewrite ^([^\.]*)/thread-([0-9]+)-([0-9]+)-([0-9]+)\.html$ https://club.zbapk.com/thread-$2-$3-$4.html permanent;
rewrite ^([^\.]*)/forum.php https://club.zbapk.com/forum.php permanent;