v2 调整

@@ -64,8 +64,8 @@ class Home extends Base {
 
 
         $sql = "`id` > ".$last_id;
-        if(!$last_id && $udate){
-            $sql = "`udate` > ".$udate;
+        if($udate){
+            $sql .= " and `udate` > ".$udate;
         }
 
         $lists = db()->all(