c# 鼠标画图如何加入重绘函数
System.Drawing.Graphics MyGraphic;
private void Form1_Load(object sender, EventArgs e)
{
MyGraphic = pictureBox2.CreateGraphics();
}
private void pictureBox2_MouseClick(object sender, MouseEventArgs e)
{
MyGraphic.DrawLine(Pens.Red, e.X + 10, e.Y, e.X - 10, e.Y);
MyGraphic.DrawLine(Pens.Red, e.X, e.Y + 10, e.X, e.Y - 10);
}
我用picturebox2加载图片，然后在MyGraphic上画图，如何使重绘后，我所画的图和picturebox2加载的图都在，应该是将MyGraphic保存，在绘画，请问大家是如何实现的，谢谢
[解决办法]
