我創(chuàng)建了包含存儲上傳文件的目錄路徑的變量。我想知道這在 Windows 上運(yùn)行得很好，但在 linux ubuntu 上卻不行。也許我提到目錄的方式是錯誤的。在 Laravel 上跟隨控制器； public function Store(Request $request){    $data = array();    $data['product_name'] = $request->product_name;    $data['product_code'] = $request->product_code;    $data['details'] = $request->details;    $image = $request->file('logo');    if($image){        $image_name = date('dmy_H_s_i');        $ext=strtolower($image->getClientOriginalExtension());        $image_full_name=$image_name.'.'.$ext;        $upload_path='home/laravel/udemy/kash';        $image_url=$upload_path.$image_full_name;        $success = $image->move($upload_path,$image_full_name);        $data['logo']=$image_url;        $product=DB::table('products')->insert($data);        return redirect()->route('product.index')                            ->with('success','Product Created Successfully');    }