简单的文件上传无法获取$item['title']

app/Services/File/Upload/FilesUploadService.php

@@ -24,7 +24,7 @@ class FilesUploadService
         foreach ($this->request->file("files") as $index => $file) {
 
             $item = $this->uploadFile($this->request, $file);
-            $item['file']['title'] = $fileNames[$index] ?? $item['title'];
+            $item['file']['title'] = $fileNames[$index] ?? $item['file']['title'];
 
             $items[] = $item;
         }