C#添加修改删除文件文件夹大全 - 蓝麒麟 - 博客园. C#添加修改删除文件文件夹大全 StreamWriter sw = File.AppendText(Server.MapPath(\".\")+\"\\\\myText.txt\"); sw.WriteLine(\"追逐理想\"); sw.WriteLine(\"kzlll\"); sw.WriteLine(\".NET 笔记\"); sw.Flush()