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diff --git a/ADO.md b/ADO.md
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@@ -32,6 +32,7 @@ Ado 下面所有参数 object parms 都可以接受匿名对象，或者字典
 
 IN 参数化查询：
 
+> 当前仅支持Array和IList类型绑定
 ```c#
 var ids = new int[] { 1,2,3 };
 List<T> list = fsql.Ado.Query<T>("select * from t1 where id in @ids", new { ids = ids });