C#操作txt文件,进行清空添加操作的例子.代码: //把txt清空 FileStream stream = File.Open(Adr,FileMode.OpenOrCreate,FileAccess.Write); stream.Seek(, SeekOrigin.Begin); stream.SetLength(); stream.Close(); //向txt里面追加信息 StreamWriter sw = new StreamWriter(Adr,true,Encoding.GetEn…