diff --git a/core/class/perm/perm_check.php b/core/class/perm/perm_check.php
index 0451d57..ec98c98 100644
--- a/core/class/perm/perm_check.php
+++ b/core/class/perm/perm_check.php
@@ -68,11 +68,7 @@ class perm_check{
                     }elseif($folder = C::t('folder')->fetch_home_by_uid($uid)){//查看当前用户的个人网盘fid
                         if($folder['fid']){
                             if(!($folder['fid']==$fid)){//判断当前用户的个人网盘fid是否等于当前用户访问的fid
-                                $fids = array();
-                                $fids[] = $folder['fid'];
-                                foreach (C::t('folder')->fetch_all_folderfid_by_pfid($folder['fid']) as $v) {//查看当前用户的个人网盘下的所有目录
-                                    $fids[] = $v;
-                                }
+                                $fids = get_all_chilrdenfid_by_pfid($folder['fid']);
                                 if (!(in_array($fid,$fids))){
                                     return false;
                                 }
diff --git a/core/function/function_core.php b/core/function/function_core.php
index 7c92ed1..26a2885 100644
--- a/core/function/function_core.php
+++ b/core/function/function_core.php
@@ -3579,4 +3579,15 @@ function dzz_userconfig_init()
     if ($pathh==$shareLink){
         return true;
     }
+}
+
+//取得所有子级目录
+function get_all_chilrdenfid_by_pfid($pfid)
+{
+	static $fids = array();
+    foreach(C::t('folder')->fetch_fid_by_pfid($pfid) as $v){
+        $fids[] = $v['fid'];
+        get_all_chilrdenfid_by_pfid($v['fid']);
+    }
+    return $fids;
 }
\ No newline at end of file