How to introduce Alibaba Cloud Oss Sdk in thinkphp

After downloading the document, I put it under ORG but import("ORG.Alioss.alioss");

<code>    $tt=new \OssClient();
    
    一直提示 Class 'OssClient' not found  怎么办大哥</code>

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After downloading the document, I put it under ORG but import("ORG.Alioss.alioss");

<code>    $tt=new \OssClient();
    
    一直提示 Class 'OssClient' not found  怎么办大哥</code>

I put it in vendor, and the information is in the configuration file.

<code>        Vendor('OSS.autoload');
        $config=C('ALIOSS_CONFIG');
        $oss=new \OSS\OssClient($config['KEY_ID'],$config['KEY_SECRET'],$config['END_POINT']);
        return $oss;</code>