diff --git a/多表查询.md b/多表查询.md
index cdd3720..6e28db0 100644
--- a/多表查询.md
+++ b/多表查询.md
@@ -99,12 +99,12 @@ var list2 = select.Where(a => select.As("b").ToList(b => b.Id).Contains(a.Id)).T
 ```csharp
 var subquery = select.ToSql(a => new {
     all = a,
-    first = orm.Select<Child>().Where(b => b.ParentId == a.Id).First(b => b.Id),
-    count = orm.Select<Child>().Where(b => b.ParentId == a.Id).Count(),
-    sum = orm.Select<Child>().Where(b => b.ParentId == a.Id).Sum(b => b.Score),
-    max = orm.Select<Child>().Where(b => b.ParentId == a.Id).Max(b => b.Score),
-    min = orm.Select<Child>().Where(b => b.ParentId == a.Id).Min(b => b.Score),
-    avg = orm.Select<Child>().Where(b => b.ParentId == a.Id).Avg(b => b.Score)
+    first = fsql.Select<Child>().Where(b => b.ParentId == a.Id).First(b => b.Id),
+    count = fsql.Select<Child>().Where(b => b.ParentId == a.Id).Count(),
+    sum = fsql.Select<Child>().Where(b => b.ParentId == a.Id).Sum(b => b.Score),
+    max = fsql.Select<Child>().Where(b => b.ParentId == a.Id).Max(b => b.Score),
+    min = fsql.Select<Child>().Where(b => b.ParentId == a.Id).Min(b => b.Score),
+    avg = fsql.Select<Child>().Where(b => b.ParentId == a.Id).Avg(b => b.Score)
 });
 ```