Question

c# gdi画动态的图就是比如说画一个小圆圈,原点坐标不停变化,这个圆圈就动起来了,这该怎么写啊

Answer 1

public partial class Form1 : Form

{

public Form1()

{

InitializeComponent();

Timer t = new Timer();

t.Interval = 1000;

t.Tick += T;

t.Enabled = true;

Paint += P;

}

//时钟事件引发重绘

private void T(object o, EventArgs e)

{

Invalidate();

}

//没有画点的函数,所以用画小实心圆来模拟

//圆心坐标通过随机函数产生

private void P(object o, PaintEventArgs e)

{

e.Graphics.FillEllipse(new SolidBrush(Color.Red),

new Random().Next(200), new Random().Next(200), 5, 5);

}

}