手动拼接
得到p参数：http://note.youdao.com/yws/public/note/{分享id}?editorType=0&cstk=cGtjFpHb拼接下载地址：http://note.youdao.com/yws/api/personal/file/{p参数}?method=download&inline=true&shareKey={分享id}
PHP代码
<?php
$id = $_GET['id'] ?? '';
if (empty($id)) {
exit('缺少有道云分享id');
}
$url = "http://note.youdao.com/yws/public/note/{$id}?editorType=0&cstk=cGtjFpHb";
$res = file_get_contents($url);
$resArr = json_decode($res, true);
$p = trim($resArr['p'], '/');
$downUrl = "http://note.youdao.com/yws/api/personal/file/{$p}?method=download&inline=true&shareKey={$id}";
echo $downUrl;
