1、实现连杆带动滑块运动
一个连杆旋转带动另一个连杆，另一个连杆拖动滑块，点击“开始”按钮开始运动，再点击按钮，则停止运动。

2、实现程序

#region 机构仿真Image image = null;Timer timer= new Timer();int width = 0;int height = 0;int axisPoint = 10;double angle = 0;bool isRun = false;const int pole1 = 50;const int pole2 = 150;Point[] points = new Point[3];private void MechanismInitialize(){DrawMechanism(angle);timer.Interval= 100;timer.Tick += Timer_Tick;timer.Start();}private void Timer_Tick(object sender, EventArgs e){if (isRun){DrawMechanism(angle);angle += 10;}}private void button1_Click(object sender, EventArgs e){if (button1.Text.Equals("开始")){button1.Text = "结束";isRun = true;}else{button1.Text = "开始";isRun = false;}}private void DrawMechanism(double angle){width = this.pictureBox1.Width;height = this.pictureBox1.Height;image = new Bitmap(width, height);Graphics g = Graphics.FromImage(image);g.Clear(Color.White);int x = width / 8 * 3;int y = height / 2;Point p = new Point(x, y);points[0] = p;x = x + (int)(pole1 * Math.Cos(Math.PI / 180*angle));y = y + (int)(pole1 * Math.Sin(Math.PI / 180*angle));p = new Point(x, y);points[1] = p;int z = pole1 * (int)(Math.Sin(Math.PI / 180 * angle));x = (int)(width / 8 * 3 + pole1 * Math.Cos(Math.PI / 180 * angle) + Math.Sqrt(pole2 * pole2 - z * z));y = height / 2;p = new Point(x, y);points[2] = p;Pen pen = new Pen(Color.Black, 2);g.DrawEllipse(pen, points[0].X - axisPoint / 2, points[0].Y - axisPoint / 2, axisPoint, axisPoint);g.DrawLine(pen, points[0], points[1]);g.DrawEllipse(pen, points[1].X - axisPoint / 2, points[1].Y - axisPoint / 2, axisPoint, axisPoint);g.DrawLine(pen, points[1], points[2]);g.FillEllipse(new SolidBrush(Color.Blue), points[2].X - axisPoint, points[2].Y - axisPoint , axisPoint*2, axisPoint*2);g.Dispose();this.pictureBox1.Image = image;}#endregion