add ugc

mobile/control/member_ugc.php

@@ -45,10 +45,13 @@ class member_ugcControl extends specialControl
         $special_id = intval($_GET['special_id']);
         $count = $this->page_size();
 
-        if(empty($special_id) || $special_id == -1) {
+        if($special_id == -1) {
             $special_id = -1;
             $direct = self::lesser;
         }
+        elseif ($special_id == 0) {
+            return self::outsuccess(array('special_list' => null,'mobile_page' => mobile_page(0)));
+        }
         else {
             $direct = $this->direct();
         }