1，新建一个 winform 工程
2，添加一个 时钟控件 timer1
双击 窗体空白处，加入下面代码
private void Form1_Load( object sender, EventArgs e ) {
timer1.Interval = 600;//间隔 600毫秒
timer1.Start();//启动时钟
}
双击 timer1 控件，写下如下代码
private void timer1_Tick( object sender, EventArgs e ) {
Cursor.Position = new Point( Cursor.Position.X - 50, Cursor.Position.Y - 50 );
System.Threading.Thread.Sleep( 500 );
Cursor.Position = new Point( Cursor.Position.X + 50, Cursor.Position.Y + 50 );
}