大家好。我在使用燒瓶上傳圖像時遇到了一個小問題。我可以在localhost中的flask上上傳圖像（Web應用程序托管在我的桌面上）。但是當我在Online Server上加載燒瓶應用程序時，我總是遇到“FileNotFoundError”。我還將權限更改為777，但仍然無法正常工作。這是 html 上傳代碼。<form name="edit_vehicle_info" action="/vehicle_info_form/" method="POST" enctype="multipart/form-data" class="formfield">    <div class="form-group">    <label for="changeVehicleImg">Vehicle Image</label>    <input type="file" id="changeVehicleImg" name="changeVehicleImg" accept="image/*"></div>這是python上傳代碼。#[email protected]('/vehicle_info_form/', methods=['GET', 'POST'])def vehicle_info_form():    try:        if request.method == "GET":            return render_template(                'vehicleInfo.html'            )        elif request.method == "POST":            inputVehicleImg = request.files['changeVehicleImg']            if inputVehicleImg.filename == "":                inputVehicleImg_filename = ""            else:                print(inputVehicleImg.filename)                print(app.config['UPLOAD_FOLDER_IMG_VEHICLE'])                inputVehicleImg_filename = secure_filename(inputVehicleImg.filename)                inputVehicleImg.save(os.path.join(app.config['UPLOAD_FOLDER_IMG_VEHICLE'], inputVehicleImg_filename))            print ('success')    except Exception as e:        print(e)        return redirect(url_for('vehicle_info_form'))python上傳代碼可以打印，然后之后，發生錯誤。inputVehicleImg.filenameapp.config['UPLOAD_FOLDER_IMG_VEHICLE']