作用：系统托盘图标控件，用于应用程序最小化或后台运行时在托盘上面显示图标。

常用属性：

对象名称name，icon图标，右键菜单contextMenuStrip

常用事件：

 

 

后台代码示范：

NotifyIcon、contextMenuStrip添加如下：

 

//关闭窗口时，不退出程序，使程序最小化至托盘private void Form1_FormClosing(object sender, FormClosingEventArgs e){if (e.CloseReason == CloseReason.ApplicationExitCall){Application.Exit();}else{e.Cancel = true;this.WindowState = FormWindowState.Minimized;this.Hide();this.notifyIcon1.Visible = true;}}//托盘图标的鼠标双击图标事件private void notifyIcon1_MouseDoubleClick(object sender, MouseEventArgs e){notifyIcon1.Visible = true;this.Show();this.Activate();this.WindowState = FormWindowState.Normal;}//右键菜单之显示： 用在托盘图标上面private void 显示ToolStripMenuItem_Click(object sender, EventArgs e){this.Show();this.WindowState = FormWindowState.Normal;this.Activate();}//右键菜单之隐藏： 用在托盘图标上面private void 隐藏ToolStripMenuItem_Click(object sender, EventArgs e){this.Hide();}//右键菜单之退出： 用在托盘图标上面private void 退出ToolStripMenuItem_Click(object sender, EventArgs e){Application.Exit();}