调整文件上传分块大小设置为1

app/Libraries/ChunkedUpload/Disks/Cos.php

@@ -27,7 +27,7 @@ class Cos implements ChunkedUploadContact
             $notUploadedSize = $file->getSize();
 
             $options = [
-                'PartSize' => 5 * 1024 * 1024,
+                'PartSize' => 1 * 1024 * 1024,
                 'Progress' => function ($totalSize, $uploadedSize) use (&$notUploadedSize, $progressBar) {
                     $partSize = $uploadedSize - ($totalSize - $notUploadedSize);