/// 
        /// 输出指定信息到文本文件        /// 
        /// 输出信息        public static void WriteMessage(string msg)        {            using (FileStream fs = new FileStream(@"d:\test.txt", FileMode.OpenOrCreate, FileAccess.Write))            {                using (StreamWriter sw = new StreamWriter(fs))                {                    sw.BaseStream.Seek(0, SeekOrigin.End);                    sw.WriteLine("{0}\n", msg, DateTime.Now);                    sw.Flush();                }            }        }

 

引用：https://www.cnblogs.com/dansediao/p/6605141.html