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;

```