实现效果:

知识运用:
NotifyIcon控件的Icon属性 //获取或设置当前托盘图标
public Icon Icon{ get;ser }
和ContextMenu属性 //获取或设置托盘图标的快捷菜单
public ContextMenu ContexeMenu { get;set }
实现代码:
private void Form1_Load(object sender, EventArgs e)
{
NotifyIcon P_icon = new NotifyIcon();
Icon ic = new Icon("m.ico");
P_icon.Icon = ic;
P_icon.Visible = true;
MenuItem mi = new MenuItem("最大化");
mi.Click += new EventHandler(mi_Click);
MenuItem mi2 = new MenuItem("退出");
mi2.Click+=new EventHandler(mi2_Click);
P_icon.ContextMenu = new ContextMenu(new MenuItem[]{mi,mi2});
}
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