同学做的，源代码
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.IO;
using System.Windows.Forms;
namespace 点名程序
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
arr =File.ReadAllLines("名单.txt",Encoding.GetEncoding("gb2312"));
pictureBox1.Image = Image.FromFile("照片/***********.jpg");
this.label1.Text = "中奖的同学是：*********** 8888" ;
}
private void label1_Click(object sender, EventArgs e)
{
}
private void timer1_Tick(object sender, EventArgs e)
{
int flag;
Random r = new Random();
flag = r.Next(arr.Length);
this.label1.Text="中奖的同学是："+arr[flag];
}
private void button1_Click(object sender, EventArgs e)
{
if (this.timer1.Enabled==false)
{
this.timer1.Enabled=true;
this.button1.Text = "停止";
}
else
{
this.timer1.Enabled =false;
this.button1.Text = "开始";
}
}
private void Form1_Load(object sender, EventArgs e)
{
}
private void button2_Click(object sender, EventArgs e)
{
Form fm = new Form2();
fm.ShowDialog();
}
private void button3_Click(object sender, EventArgs e)
{
this.Close();
}
}
}
