diff --git a/app/Helpers/function.php b/app/Helpers/function.php
index 6cc6b76..f75e18b 100644
--- a/app/Helpers/function.php
+++ b/app/Helpers/function.php
@@ -124,17 +124,6 @@ function getAllChild($categories, $categoryId)
     return $arr;
 }
 
-function getSonNode($pid = 0, $SonNode = array())
-{
-    $SonNode[] = $pid;
-    foreach ($data as $k => $v) {
-        if ($v['source_member'] == $pid) {
-            $SonNode = $this->getSonNode($data, $v['member_id'], $SonNode);
-        }
-    }
-    unset($SonNode[0]);
-    return $SonNode;
-}
 
 //获取专利和论文
 function getPatent($take, $type = '')