Update README.zh-CN.md (#554)

shaofing · web-flow · commit 8bf92ac5d2fc · 2023-12-27T12:00:00.000+08:00
update Dapper demo
diff --git a/README.zh-CN.md b/README.zh-CN.md
@@ -423,11 +423,12 @@ using (var connection = GetConnection(connectionString))
     var rows = connection.Query(
         new CommandDefinition(
             @"select 'MiniExcel' as Column1,1 as Column2 union all select 'Github',2"
-            , CommandFlags.NoCache)
+            , flags: CommandFlags.NoCache)
         )
     MiniExcel.SaveAs(path, rows);
 }
 ```
+上面的方法已知的问题：不能使用异步QueryAsync的方法，会报连接已经关闭的异常
 
 以下写法会将数据全载入内存
 

Original file line number	Diff line number	Diff line change
`@@ -423,11 +423,12 @@ using (var connection = GetConnection(connectionString))`
`423`	`423`	`var rows = connection.Query(`
`424`	`424`	`new CommandDefinition(`
`425`	`425`	`@"select 'MiniExcel' as Column1,1 as Column2 union all select 'Github',2"`
`426`		`- , CommandFlags.NoCache)`
	`426`	`+ , flags: CommandFlags.NoCache)`
`427`	`427`	`)`
`428`	`428`	`MiniExcel.SaveAs(path, rows);`
`429`	`429`	`}`
`430`	`430`	```
	`431`	`+上面的方法已知的问题：不能使用异步QueryAsync的方法，会报连接已经关闭的异常`
`431`	`432`
`432`	`433`	`以下写法会将数据全载入内存`
`433`	`434`