Update app.py

app.py

@@ -12,17 +12,11 @@ except ImportError:
 def load_data(uploaded_file):
     """載入並處理CSV檔案"""
     try:
-        # 直接載入檔案
         df = pd.read_csv(uploaded_file, encoding='utf-8')
-        
-        # 移除空白列
         df = df.dropna(how='all')
-
-        # 將數值欄位轉換為數字類型
         numeric_columns = ['平均', '總分', '國文', '英文', '數學', '自科', '社會', '地理', '歷史', '公民']
         for col in numeric_columns:
             df[col] = pd.to_numeric(df[col], errors='coerce')
-        
         return df
     except Exception as e:
         st.error(f"載入檔案時發生錯誤：{e}")
@@ -48,7 +42,7 @@ def create_radar_chart(df, selected_rows, selected_columns):
                 dash=line_styles[i % len(line_styles)],
                 width=2
             ),
-            marker=dict(opacity=0.5)  # 增加透明度
+            marker=dict(opacity=0.5)
         ))
 
     fig.update_layout(
@@ -58,10 +52,13 @@ def create_radar_chart(df, selected_rows, selected_columns):
                 range=[0, df[selected_columns].values.max() * 1.1]
             ),
             angularaxis=dict(
-                tickfont=dict(size=16, color='black')  # 放大字體，顏色為黑色
+                tickfont=dict(size=16, color='black')
             )
         ),
         showlegend=True,
+        legend=dict(
+            font=dict(size=14, color='black')  # 圖例文字放大並改為黑色
+        ),
         title='學生成績雷達圖',
         plot_bgcolor='white',  # 背景為白色
         paper_bgcolor='white'  # 紙張背景為白色
@@ -79,11 +76,15 @@ def save_all_radar_charts(df, selected_columns, comparison_rows):
             continue
 
         fig = create_radar_chart(df, [student] + comparison_rows, selected_columns)
-        fig.update_layout(font=dict(family="Microsoft JhengHei, Arial", size=12))  # 設置中文字型
+        fig.update_layout(
+            font=dict(family="Microsoft JhengHei, Arial", size=12)  # 嵌入中文字型
+        )
         file_path = os.path.join(output_dir, f"{student}_comparison.png")
-        fig.write_image(file_path, engine="kaleido")
+        try:
+            fig.write_image(file_path, engine="kaleido")
+        except Exception as e:
+            st.error(f"保存圖片時發生錯誤：{e}")
 
-    # 壓縮所有圖表
     zip_path = "radar_charts.zip"
     with ZipFile(zip_path, 'w') as zipf:
         for file_name in os.listdir(output_dir):
@@ -132,5 +133,4 @@ def main():
                         )
 
 if __name__ == "__main__":
-    main()
-
+    main()