int vx = 5;
        int vy = 5;
        int bleft, bright, btop, bbottom;
        private void timer1_Tick(object sender, EventArgs e)
        {
            bleft = b.Left;
            bright = b.Right;
            btop = b.Top;
            bbottom = b.Bottom;
            b.Left += vx;
            b.Top += vy;
            if (b.Left<0)
            {
                vx = Math.Abs(vx);
            }
            if (b.Right>this.ClientSize.Width)
            {
                vx = -Math.Abs(vx);
            }
            if (b.Top<menuStrip1.Height)
            {
                vy = Math.Abs(vy);
            }
            if (b.Bottom>p.Top)//如果用label無法直接使用比較符號
            {
                int c = (b.Left + b.Right) / 2;
               if (c>=p.Left&&c<=p.Right)
	            {
                    double f = ((double)c - (double)p.Left) / (double)p.Width;
                    if (vx<0)
                    {
                        f = (1.0 - f); 
                    }
                    vx = (int)Math.Round(vx * f);
                    vy = -Math.Abs(vy);
	            }
               else
               {
                   if (b.Top>this.ClientSize.Height)
                   {
                       timer1.Stop();
                       MessageBox.Show("game over,,,,");
                   }
               }
            }
            foreach (var c in this.Controls)
            {
                if (c is Label)
                {
                    Label Q = (Label)c;
                    if (Q.Visible)
                    {
                        if (chkHit(Q)) { break; }
                    }
                }
            }
           
        }
        int mdx;
        private void 開始ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            b.Top = 40 * 10 + 30;
            p.Top = this.ClientSize.Height - 30;
            b.Left = this.ClientSize.Width / 2;
            b.Top = this.ClientSize.Height / 3;
            timer1.Start();
        }

        private void 暫停繼續ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            timer1.Enabled = !(timer1.Enabled);
        }

        private void 結束ToolStripMenuItem_Click(object sender, EventArgs e)
        {
            Application.Exit();
        }

        private void p_MouseDown(object sender, MouseEventArgs e)
        {
            mdx = e.X;
        }

        private void p_MouseMove(object sender, MouseEventArgs e)
        {
            if (e.Button == MouseButtons.Left)
            {
                int x = p.Left + (e.X - mdx);
                if (x < 0)
                {
                    x = 0;
                }
                if (x > this.ClientSize.Width - p.Width)
                {
                    x = this.ClientSize.Width - p.Width;
                }
                p.Left = x;
            }
        }

        private Label Brick(int x, int y)
        {
            Label B = new Label();
            B.Width = 60;
            B.Height = 40;
            B.BackColor = Color.DarkRed;
            B.BorderStyle = BorderStyle.FixedSingle;
            B.Left = x;
            B.Top = this.menuStrip1.Height + y;
            return B;
        }

        private void Form1_Load(object sender, EventArgs e)
        {
            for (int i = 0; i <10; i++)
            {
                for (int j = 0; j < 5; j++)
                {
                    this.Controls.Add(Brick(i*60, j*40));
                } 
            }
            this.Width = 600 + this.Width - this.ClientSize.Width;
            //clientSize無法直接調整,所以只能用整體減去可編輯來調整
            this.Height = 400 + this.Height - this.ClientSize.Height;
            b.Top = 40 * 10 + 30;
            p.Top = this.ClientSize.Height - 30;
            b.Left = (this.ClientSize.Width - b.Width) / 2;
            p.Left = (this.ClientSize.Width - p.Width) / 2;
            
        }
        private Boolean chkHit(Label Q)
        {
            if (b.Top > Q.Bottom) { return false; }//求在磚塊下方
            if (b.Right > Q.Left) { return false; }//求在磚塊左方
            if (b.Left > Q.Right) { return false; }//球在磚塊右方
            if (b.Bottom <Q.Top) { return false; }//球在磚塊上方
            //以上4種判斷都通過代表球有撞到磚塊
            Q.Visible = false;
            if (b.Right>=Q.Left&&btop>Q.Left)//撞到磚塊底部
            {
                vy = Math.Abs(vy);
                return true;
            }
            if (b.Left<=Q.Right&&bright>Q.Right)//撞到磚塊右邊
            {
                vx = Math.Abs(vx);
                return true;
            }
            if (b.Left>= Q.Right && bright < Q.Right)//撞到磚塊左邊
            {
                vx =- Math.Abs(vx);
                return true;
            }
            if (b.Bottom>=Q.Top&&bbottom<Q.Top)//撞到磚塊底部
            {
                vy = -Math.Abs(vy);
                return true;
            }
            return false;
        }

打磚塊小遊戲,球是自己把圖片放上去