update

Pagination.md

@@ -26,6 +26,15 @@ var list = fsql.Select<Topic>()
     .Tolist();
 ```
 
+> Count(out var total) is a synchronous method, because out does not support asynchrony. If you mind, you can execute it separately as follows:
+
+```c#
+var select = fsql.Select<Topic>()
+    .Where(a => a.Id > 10);
+var total = await select.CountAsync();
+var list = await select.Page(1, 20).ToListAsync();
+```
+
 ## Optimization
 
 For the previous versions of `SqlServer 2012`, use `row_number` for pagination;

分页查询.md

@@ -26,6 +26,15 @@ var list = fsql.Select<Topic>()
     .Tolist();
 ```
 
+> Count(out var total) 是同步方法，原因是 out 不支持异步，如果介意可以单独执行如下：
+
+```c#
+var select = fsql.Select<Topic>()
+    .Where(a => a.Id > 10);
+var total = await select.CountAsync();
+var list = await select.Page(1, 20).ToListAsync();
+```
+
 ## 优化
 
 `SqlServer 2012` 以前的版本，使用 `row_number` 分页；