edit

src/Api.php

@@ -94,10 +94,10 @@ class Api
 		return $relation->getChild($uid, $level, $page);
 	}
 
-    public function getChildNum($uid, $level = false)
+    public function getChildNum($uid, $level = false, $start = false, $end = false)
     {
         $relation = new Relation();
-        return $relation->getChildNum($uid, $level);
+        return $relation->getChildNum($uid, $level, $start, $end);
     }
 
 	# 获取某个用户的上级