public function download_img_all(){

//图片数组

        $res=["http://hyxun-erp-wwwroot-ginny.oss-cn-hangzhou.aliyuncs.com/img/6ee6706a6c178e5b2edf988f832bac4d925ffbe9.jpeg", "http://hyxun-erp-wwwroot-ginny.oss-cn-hangzhou.aliyuncs.com/img/5a05269ca0418f5954055cf6ca70aa073122390f.jpeg"

            , "http://hyxun-erp-wwwroot-ginny.oss-cn-hangzhou.aliyuncs.com/img/a22c1001f8b091bcd6a77663a7c39e710878e6be.jpeg"

            ,"http://hyxun-erp-wwwroot-ginny.oss-cn-hangzhou.aliyuncs.com/img/9c9a38354249cfe408aee02f80a5a6f2854d6d19.jpeg"

            , "http://hyxun-erp-wwwroot-ginny.oss-cn-hangzhou.aliyuncs.com/img/56efe9f8eaf6e86c8ce646daa06234f70f4d9c02.jpeg"

            ,"http://hyxun-erp-wwwroot-ginny.oss-cn-hangzhou.aliyuncs.com/img/3d530014e30427fcf04a330f86caad77a9348ccd.jpeg"

            , "http://hyxun-erp-wwwroot-ginny.oss-cn-hangzhou.aliyuncs.com/img/f13ea3162d51bbba543ab297cb6cc9001a0d460b.jpeg"

            ,"http://hyxun-erp-wwwroot-ginny.oss-cn-hangzhou.aliyuncs.com/img/55eb2e7b06b4bbacda53e8b2ae3a0498802faa24.jpeg"

        ];

        //创建压缩包的路径及其名字

        $filename = $_SERVER['DOCUMENT_ROOT'].'/Dwonload.zip';

        $zip = new \ZipArchive;

        $zip->open($filename,$zip::CREATE);

        //往压缩包内添加目录

        $zip->addEmptyDir('images');

        foreach ($res as $k=>$value) {

            $fileData = file_get_contents($value);

            if ($fileData) {

                $add = $zip->addFromString('images/'.$value, $fileData);

            }

        }

        $zip->close();

        //打开文件

        //下载文件

        ob_end_clean();

        header("Content-Type: application/force-download");

        header("Content-Transfer-Encoding: binary");

        header('Content-Type: application/zip');

        header('Content-Disposition: attachment; filename='.time().'.zip');

        header('Content-Length: '.filesize($filename));

        error_reporting(0);

       readfile($filename);

        flush();

        ob_flush();

    }