current_index = 0

app.py

@@ -479,18 +479,18 @@ def respond(user_message, df_string_output, chat_history):
     return "", chat_history
 
 def update_slide(direction):
-    current_index[0] += direction
-    if current_index[0] < 0:
-        current_index[0] = 0  # 防止索引小于0
-    elif current_index[0] >= len(TRASCRIPTS):
-        current_index[0] = len(TRASCRIPTS) - 1  # 防止索引超出范围
+    current_index += direction
+    if current_index < 0:
+        current_index = 0  # 防止索引小于0
+    elif current_index >= len(TRASCRIPTS):
+        current_index = len(TRASCRIPTS) - 1  # 防止索引超出范围
     
     # 获取当前条目的文本和截图 URL
-    current_transcript = TRASCRIPTS[current_index[0]]
+    current_transcript = TRASCRIPTS[current_index]
     return current_transcript["screenshot_url"], current_transcript["text"]
 
 
-current_index = [0]
+current_index = 0
 
 with gr.Blocks() as demo:
     with gr.Row():
@@ -515,6 +515,7 @@ with gr.Blocks() as demo:
                 prev_button.click(fn=update_slide, inputs=-1, outputs=[image, text])
                 next_button.click(fn=update_slide, inputs=1, outputs=[image, text])
                 update_slide(0)
+
             with gr.Tab("YouTube Transcript and Video"):
                 transcript_html = gr.HTML(label="YouTube Transcript and Video")            
             with gr.Tab("資料本文"):