using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Security.Permissions;

namespace QueueTest
{
 public partial class Form1 : Form
 {
 public Form1()
 {
 InitializeComponent();
 }

 private void pd1_Click(object sender, EventArgs e)
 {

 }

 private void pictureBox1_Click(object sender, EventArgs e)
 {
 MessageBox.Show("123");
 }
 
 private void pictureBox1_MouseDown(object sender, MouseEventArgs e)
 {
 
 }

 private void pictureBox1_MouseUp(object sender, MouseEventArgs e)
 {
 
 }

 private void Form1_Load(object sender, EventArgs e)
 {
 //pictureBox1.down += new Action(pictureBox1_down);
 //pictureBox1.up += new Action(pictureBox1_up);
 pictureBox1.down +=new Action<object>(pictureBox1_down);
 pictureBox1.up += new Action<object>(pictureBox1_up);
 }

 void pictureBox1_up(object sender)
 {
 PictureBox pb = sender as PictureBox;
 pb.Image = Properties.Resources.数字按钮;
 }

 void pictureBox1_down(object sender)
 {
 PictureBox pb = sender as PictureBox;
 pb.Image = Properties.Resources.数字按钮2;
 
 }

 private void pd1_MouseDown(object sender, MouseEventArgs e)
 {
 PictureBox pb = sender as PictureBox;
 pb.Image = Properties.Resources.数字按钮2;
 
 }

 private void pd1_MouseUp(object sender, MouseEventArgs e)
 {
 PictureBox pb = sender as PictureBox;
 pb.Image = Properties.Resources.数字按钮;
 }
 }
}