diff --git a/src/views/basedata/private/StuPic.vue b/src/views/basedata/private/StuPic.vue
index d031cbf..2058c32 100644
--- a/src/views/basedata/private/StuPic.vue
+++ b/src/views/basedata/private/StuPic.vue
@@ -263,7 +263,8 @@ export default {
                         fontSize: 14
                     },
 
-                    data: [...stuYearNames]
+                    data: [...stuYearNames],
+                    selectedMode: 'single'
                 },
                 radar: {
                     indicator: [