1.引入命名空间:using System.IO;
2.代码实现如下:
#region [写入本地记事本]
StreamWriter sw = File.AppendText("D:\\AA.txt");//指定路径
//StreamWriter sw = File.AppendText(Application.StartupPath + "\\AA.txt");//程序根目录路径
string w = "此处存放需要写入的内容";
sw.WriteLine(w);
sw.Flush();
sw.Close();
#endregion