Question

如何用C#语言实现用鼠标画曲线的程序？？

Answer 1

private Point point;
private Graphics g;
private void Form1_MouseMove(object sender, MouseEventArgs e)
{
this.g = this.CreateGraphics();
if (e.Button != MouseButtons.Left)
{
this.point = new Point(e.X, e.Y);
return;
}
Pen Redpen = new Pen(Color.Red);
Point currentPoint=new Point(e.X,e.Y);
g.DrawLine(Redpen, this.point, currentPoint);
this.point = currentPoint;
}

最重要的代码就是这些了，在单机鼠标移动的过程中不断的绘制短直线!最后达到绘制曲线的目的