diff --git a/app-dm/src/TeacherPages/Trainmanage/Trainmanage.jsx b/app-dm/src/TeacherPages/Trainmanage/Trainmanage.jsx
index 02e0e93..da27817 100644
--- a/app-dm/src/TeacherPages/Trainmanage/Trainmanage.jsx
+++ b/app-dm/src/TeacherPages/Trainmanage/Trainmanage.jsx
@@ -81,7 +81,7 @@ function TrainManage(){
                             <th>总成绩</th>
                         </tr>
                     </thead>
-                    <tbody>
+                    {TrainData&&<tbody>
                     {Object.keys(TrainData).map((key)=>(
                     <tr key={key}>
                         <td>{key}</td>
@@ -91,7 +91,7 @@ function TrainManage(){
                         <td>{parseInt(TrainData[key][4])+parseInt(TrainData[key][5])}</td>
                     </tr>
                     ))}
-                    </tbody>
+                    </tbody>}
                 </table>
             </div>