//创建曲线中的点

    Point point1 = new Point(68, 420);

    Point point2 = new Point(71, 410);

    Point point3 = new Point(74, 423);

    Point point4 = new Point(77, 412);

    Point point5 = new Point(80, 400);

    Point point6 = new Point(90, 380);

    Point point7 = new Point(100, 350);

    Point point8 = new Point(120, 320);

    Point[] curvePoints = { point1, point2, point3, point4, point5, point6, point7, point8 };

    GraphicsPath myPath = new GraphicsPath();

    //AddCurve(点阵,起点,终点,弯曲程度)

    myPath.AddCurve(curvePoints, 0, 7, 0.8f);

    Pen myPen = new Pen(Color.Red, 1);

    IMG.DrawPath(myPen, myPath);

using System.Drawing.Imaging;
using System.Drawing.Drawing2D;

   //数据/月份

   public ArrayList arrData=new ArrayList();

   public ArrayList arrMonth=new ArrayList();

   //定义幕布高宽

   private int iCanvasWidth=400;

   private int iCanvasHeight=300;

   //x轴的间距

   private int iX=30;

   //y轴间距

   private int iY=15;

   public void InitArray()

   {

    for(int i=0;i