视频分类切换bug

src/views/video/List.vue

@@ -37,11 +37,7 @@ const handelChangeFirstNav=(item)=>{
 
 //点击二级分类
 const handleChangeSecNav=(item)=>{
-    if(permissionState.sSecond==item.PermissionId){
-        permissionState.sSecond=0
-    }else{
-        permissionState.sSecond=item.PermissionId
-    }
+    permissionState.sSecond=item.PermissionId
     refreshList()
 }