Update app.py

app.py

@@ -311,8 +311,8 @@ def make_line_figure(df: pd.DataFrame, x_col: str, y_cols: list,
     return fig
 
 # ====== 介面 ======
-with gr.Blocks(title="Excel/CSV 指定欄位擷取器（時間過濾＋互動線圖＋樣式）") as demo:
-    gr.Markdown("### 指定欄位擷取（A,B,K,L,M,V,W,X,Y）→ data,time,⊿Ptop,⊿Pmid,⊿Pbot,H2%,CO%,CO2%,CH4% ；支援 **時間區段 (hh:mm:ss)** 過濾與 **互動線圖**（Y 可複選）。")
+with gr.Blocks(title="Excel/CSV 指定欄位擷取器") as demo:
+    gr.Markdown("### 指定欄位擷取（A,B,K,L,M,V,W,X,Y）→ data, time, ⊿Ptop, ⊿Pmid, ⊿Pbot, H2%, CO%, CO2%, CH4% ；支援 **時間區段 (hh:mm:ss)** 過濾與 **互動線圖**（Y 可複選）。")
 
     df_state = gr.State(value=None)
 
@@ -321,16 +321,16 @@ with gr.Blocks(title="Excel/CSV 指定欄位擷取器（時間過濾＋互動線
     with gr.Row():
         gr.Markdown("**開始時間 (hh:mm:ss)**")
     with gr.Row():
-        sh = gr.Number(label="Start HH (0-23)", value=None)
-        sm = gr.Number(label="Start MM (0-59)", value=None)
-        ss = gr.Number(label="Start SS (0-59)", value=None)
+        sh = gr.Number(label="Start HH (0-23)", value="")
+        sm = gr.Number(label="Start MM (0-59)", value="")
+        ss = gr.Number(label="Start SS (0-59)", value="")
 
     with gr.Row():
         gr.Markdown("**結束時間 (hh:mm:ss)**")
     with gr.Row():
-        eh = gr.Number(label="End HH (0-23)", value=None)
-        em = gr.Number(label="End MM (0-59)", value=None)
-        es = gr.Number(label="End SS (0-59)", value=None)
+        eh = gr.Number(label="End HH (0-23)", value="")
+        em = gr.Number(label="End MM (0-59)", value="")
+        es = gr.Number(label="End SS (0-59)", value="")
 
     run_btn = gr.Button("開始處理", variant="primary")