C#实现系统托盘通知的方法

namespace WindowsApplication1{  public partial class Form1 : Form  {    public Form1()    {      InitializeComponent();    }    private void timer1_Tick(object sender, EventArgs e)    {      this.Activate();    }    private void Form1_Resize(object sender, EventArgs e)    {      if (FormWindowState.Minimized == WindowState)      {        this.notifyIcon1.Visible = true;        this.Visible = false;      }    }    private void openToolStripMenuItem_Click(object sender, EventArgs e)    {      this.notifyIcon1.Visible = false;      this.Show();      WindowState = FormWindowState.Normal;    }    private void closeToolStripMenuItem_Click(object sender, EventArgs e)    {      this.Close();    }    private void Form1_Load(object sender, EventArgs e)    {    }  }}