org\upload\driver\qiniu\QiniuStorage::delBatch PHP Method

    public function delBatch($files)
    {
        $url = $this->QINIU_RS_HOST . '/batch';
        $ops = [];
        foreach ($files as $file) {
            $ops[] = "/delete/" . self::qiniuEncode("{$this->bucket}:{$file}");
        }
        $params = 'op=' . implode('&op=', $ops);
        $url .= '?' . $params;
        trace($url);
        $accessToken = $this->accessToken($url);
        $response = $this->request($url, 'POST', ['Authorization' => "QBox {$accessToken}"]);
        return $response;
    }