创建个MFC工程，在OnPaint里面贴下面的代码

 CRect r;
        GetClientRect(&r);   //获得当前窗口对象
        int beginX,beginY;  //开始的坐标
        int endX,endY;     //终点的坐标
        CPaintDC dc(this);  //绘图对象
        dc.FillSolidRect(&r, RGB(100,100,100));   //设置背景色
        CPen pen;        //画笔对象
        pen.CreatePen(PS_SOLID, 1, RGB(255,255,255));    //设置画笔的颜色
        dc.SetTextColor(RGB(255,255,255));   //设置文字颜色
        dc.SelectObject(&pen);   //更新画笔

        //初始化起点和终点的坐标
        beginX=r.left+30;
        endX=r.left+30;

        beginY=r.top;
        endY=r.bottom;

        //临时存放坐标变量
        CString tempNum;
        //画Y坐标
        dc.MoveTo(beginX, beginY);
        dc.LineTo(endX, endY);

        for(beginX=r.left+30,endX=r.left+40,beginY=r.top,endY=r.top; endY<=r.bottom;)
        {
            tempNum.Format(_T("%d"),endY);
            dc.MoveTo(beginX, beginY);
            dc.LineTo(endX, endY);
            dc.TextOut(beginX-30, endY, tempNum);
            beginY+=40;
            endY+=40;
        }

        pen.DeleteObject();   //释放之前的画笔资源
        pen.CreatePen(PS_SOLID,1,RGB(0,255,0));  //从新设置画笔
        dc.SelectObject(&pen);
        //画曲线
        int x,y;   //波形的起点坐标
        int x1,y1; //波形的终点坐标
        int temp;  //存放每次的增量 
        //初始化起点和终点的坐标
        x=x1=r.left+45;
        y=y1=(r.bottom)/2;
        for(;x1<r.right;)
        {
            dc.MoveTo(x, y);
            dc.LineTo(x1, y1);
            x=x1;
            y=y1;
            Sleep(1);
            x1++;
            temp=rand()%((r.bottom)-y1-30);
            if(temp ==0)
            {
               temp=rand()%((r.bottom)-y1-29);
            }
            if(y1>(r.bottom)/2)
            {
                y1-=temp;
            }
            else
            {
                y1+=temp;
            }

        }
        ReleaseDC(&dc);