Update app.py

app.py

@@ -9,12 +9,25 @@ import networkx as nx
 from datetime import datetime, timedelta
 import gradio as gr
 import logging
+import matplotlib.font_manager as fm
 
 # 設置日誌
 logging.basicConfig(level=logging.INFO, format='%(asctime)s - %(levelname)s - %(message)s')
 
 # 中文顯示設置
-plt.rcParams['font.sans-serif'] = ['Microsoft JhengHei', 'Arial Unicode MS', 'SimHei', 'DejaVu Sans']
+font_list = ['Microsoft JhengHei', 'SimHei', 'Arial Unicode MS', 'DejaVu Sans']
+available_fonts = [f.name for f in fm.fontManager.ttflist]
+selected_font = None
+for font in font_list:
+    if font in available_fonts:
+        selected_font = font
+        break
+
+if selected_font:
+    logging.info(f"Using font: {selected_font}")
+    plt.rcParams['font.sans-serif'] = [selected_font]
+else:
+    logging.warning("No specified Chinese fonts found. Falling back to default. Chinese text may not render correctly.")
 plt.rcParams['axes.unicode_minus'] = False
 
 # 參數設定