Update analyzer.py

analyzer.py

@@ -17,10 +17,10 @@ def analyze_teacher_dashboard(excel_path: str) -> str:
     )
 
     # 2. 内存绘图 → base64
-    sankey_b64, b64 = plot_sankey_from_df(sankey_df, title="GIS实践教学改革方向捕捉")
+    sankey_fig, b64 = plot_sankey_from_df(sankey_df, title="GIS实践教学改革方向捕捉")
 
     # 3. 只返回最终结果
-    return sankey_b64, b64
+    return sankey_fig, b64
 
 if __name__ == '__main__':
     sankey_b64, b64 = analyze_teacher_dashboard(excel_path = "E:\\data\\20250621Edu\\ex02.xlsx")