add the user of the lock

@@ -1823,6 +1823,11 @@ function getAccessToken(){
     return $jssdk->getAccessToken();
 }
 
+/**
+ * 通过协议号获取 内容
+ * @param $serial
+ * @return mixed
+ */
 function get_user_serial($serial){
     $map['eq_name']=$serial;
     $map['state']=['neq',3];