点击button后,会有一条直线绘制在picturebox中,该怎么写事件呢?
private void button1_Click(object sender, EventArgs e)
{
Graphics g = pictureBox1.CreateGraphics;
Pen p = new Pen(Color.Red, 2);
g.DrawLine(p, 0, 0, 100, 100);
}
这样写似乎不行呃,求大神指教
需要对PictureBox的Pain事件编程
using System;看你要画什么了,简单的矩形如下:
private void button1_Click(object sender, EventArgs e)