diff --git a/多表查询.md b/多表查询.md
index b57afc9..62b7829 100644
--- a/多表查询.md
+++ b/多表查询.md
@@ -49,18 +49,19 @@ fsql.Select<Topic, Category, CategoryType>()
   .LeftJoin((a,b,c) => a.CategoryId == b.Id)
   .LeftJoin((a,b,c) => b.ParentId == c.Id)
   .Where((a,b,c) => c.Id > 0)
-  .ToList();
+  .ToList((a,b,c) => new { a,b,c });
 
 //或者
 fsql.Select<Topic>().From<Category, CategoryType>((s, b, c) => s
   .LeftJoin(a => a.CategoryId == b.Id)
   .LeftJoin(a => b.ParentId == c.Id))
   .Where((a,b,c) => c.Id > 0)
-  .ToList();
-//SELECT a.`Id`, a.`Title`, a.`Clicks`, a.`CreateTime`, a.`CategoryId`, b.`Id` as6, b.`Name`, b.`ParentId`
+  .ToList((a,b,c) => new { a,b,c });
+//SELECT ...
 //FROM `Topic` a
 //LEFT JOIN `Category` b ON a.`CategoryId` = b.`Id`
 //LEFT JOIN `CategoryType` c ON b.`ParentId` = c.`Id`
+WHERE c. `Id` > 0
 ```
 
 ## 3、SQL联表