解决方法：
1.修改
$path = './public' . app()->make(DownloadImageService::class)->downloadImage($data['cover_img'],'def','',1)['path'];
2. 修改
$DownloadImageService = app()->make(DownloadImageService::class);
$coverImg = './public' . $DownloadImageService->downloadImage($room['cover_img'],'def','',1)['path'];
$shareImg = './public' . $DownloadImageService->downloadImage($room['share_img'],'def','',1)['path'];
$feedsImg = './public' . $DownloadImageService->downloadImage($room['feeds_img'],'def','',1)['path'];
