C#中使用简单的线程

protected void btn_Click(object sender, EventArgs e)

{

String dir = "C:/Documents and Settings/Administrator/桌面/新建文件夹";

Thread t = new Thread(DeleteDir);

t.Start(dir);

DirectoryInfo d = new DirectoryInfo("C:/Documents and Settings/Administrator/桌面/新建文件夹 (2)");

if (d.GetFiles().Length == 0) {

Directory.Delete("C:/Documents and Settings/Administrator/桌面/新建文件夹 (2)");

}

}

static void DeleteDir(object dir)

{

Thread.Sleep(10000);

Directory.Delete(dir.ToString());

}