<?php require_once '../libs/BaiduPCS.class.php'; //请根据实际情况更新$access_token $access_token = '3.839af46f54db6ed60797847d2febbca0.2592000.1359262544.754976761-248414'; //默认值为'null' $cursor = 'null'; $pcs = new BaiduPCS($access_token); $result = $pcs->diff($cursor); echo $result;