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