Update app.py

app.py

@@ -144,18 +144,30 @@ def main():
                     st.plotly_chart(fig, use_container_width=True)
                 except Exception as e:
                     st.error(f"生成雷達圖時發生錯誤：{e}")
-
+                    
             st.write("### 批次繪製個別學生比較圖")
             
             individual_students = st.multiselect("選擇要個別比較的學生", df['姓名'].tolist(), key = "student")
             comparison_items = st.multiselect("選擇要比較的項目", df['姓名'].tolist(), key = "item")
           
             if individual_students and comparison_items:
-              for student in individual_students:
-                  fig = create_radar_chart(df, [student] + comparison_items, selected_columns)
-                  st.image(create_composite_image(fig,student), use_column_width=True)
-                  st.text(f"{student} 與 {', '.join(comparison_items)} 的比較")
-            
+                
+                image_options = []
+                image_bytes = {}
+                for student in individual_students:
+                    fig = create_radar_chart(df, [student] + comparison_items, selected_columns)
+                    image_bytes[student] = create_composite_image(fig,student)
+                    image_options.append(f"{student} 與 {', '.join(comparison_items)} 的比較")
+                    
+                selected_image_options = st.multiselect("選擇要顯示的圖片", options=image_options)
+                
+                cols = st.columns(3) # 排成三列
+                for i, option in enumerate(selected_image_options):
+                  student = option.split(" 與 ")[0]
+                  with cols[i%3]:
+                      st.image(image_bytes[student], use_container_width=True)
+                      st.text(option)
+
 if __name__ == "__main__":
     import numpy as np
     main()