with gr.Tab("YouTube 連結"):

app.py

@@ -196,16 +196,16 @@ with gr.Blocks() as demo:
             
             file_list = gr.State([])
             
-            with gr.Tab("上傳檔案"):
-                upload_file = gr.File(label="從電腦添加文件", file_types=[".txt", ".pdf", ".docx"])
-                add_file_button = gr.Button("添加到來源列表")
-                add_file_button.click(add_to_file_list, inputs=[upload_file, file_list], outputs=[file_list, upload_file])
-        
             with gr.Tab("YouTube 連結"):
                 youtube_link = gr.Textbox(label="輸入 YouTube 連結")
                 add_youtube_button = gr.Button("添加到來源列表")
                 add_youtube_button.click(add_youtube_to_list, inputs=[youtube_link, file_list], outputs=[file_list, youtube_link])
 
+            with gr.Tab("上傳檔案"):
+                upload_file = gr.File(label="從電腦添加文件", file_types=[".txt", ".pdf", ".docx"])
+                add_file_button = gr.Button("添加到來源列表")
+                add_file_button.click(add_to_file_list, inputs=[upload_file, file_list], outputs=[file_list, upload_file])        
+            
             file_display = gr.CheckboxGroup(label="已上傳的文件", interactive=True)
 
             process_files_button = gr.Button("處理檔案")