C#操作txt文件并清空添加操作

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(0, SeekOrigin.Begin);

stream.SetLength(0);

stream.Close();

//向txt里面追加信息

StreamWriter sw = new StreamWriter(Adr,true,Encoding.GetEncoding("gb2312"));

sw.WriteLine(str);

sw.Flush();

sw.Close();

//edit:www.jbxue.com
 

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