C#在文本文件中生成数据，再次实现操作后如何实现换行生成而不是覆盖原有内容

Question

System.IO.File.WriteAllText(@"D:\" + DateTime.Now.ToString("yyyy-MM-dd") + ".TXT", "" + DateTime.Now.ToString("hh:mm:ss") + " - you input is null\r\n", System.Text.Encoding.UTF8);

Answer 1

http://blog.csdn.net/lujianfeiccie2009/article/details/6531471