突然想起来flash有碰撞反弹飘动as控制的效果，所以想起来用c#也来做一个桌面飘动碰撞反弹无标题栏窗体。有点像中了恶意病毒广告效果。

主要代码如下（使用了一timer控件和一Button(为了我自己控制)，窗体的BorderStyle设置为None）：

复制代码 代码如下:

int ScreenWidth = SystemInformation.PrimaryMonitorMaximizedWindowSize.Width;

int ScreenHeight = SystemInformation.PrimaryMonitorMaximizedWindowSize.Height;

private int speedX = 4;

private int speedY = 3;

private bool canMove = true;

int myswitch = 1;//为了我可以控制停止所以添加的飘与停的切换开关

private void timer1_Tick(object sender, EventArgs e)

{

if (canMove)

{

this.DesktopLocation = new Point(this.DesktopLocation.X + speedX, this.DesktopLocation.Y + speedY);

if (this.DesktopLocation.X + this.Width >= ScreenWidth || this.DesktopLocation.X < 0)

{

speedX = -speedX;

}

if (this.DesktopLocation.Y + this.Height >= ScreenHeight || this.DesktopLocation.Y < 0)

{

speedY = -speedY;

}

}

}

private void button1_Click(object sender, EventArgs e)

{

myswitch *= -1;

if (myswitch == -1)

{

canMove = false;

//button1.Text = "飘动";

}

else

{

canMove = true;

//button1.Text = "停止";

}

}

private void Form1_Load(object sender, EventArgs e)

{

}

private void Form1_DoubleClick(object sender, EventArgs e)

{

Application.Exit();

}

暂写这么多，有时间把它再增强下更像恶意广告。~