自定义一个picturebox然后给他注册一个事件

using System.Drawing;
using System.Windows.Forms;

public class PictureBox : PictureBox
{
	public PictureBox(){
		this.Click += new EventHandler(this.PictureBox_Click);
	}
	
	private void PictureBox_Click(object sender, EventArgs e){
		MessageBox.Show("Hello World");
	}
}