以下是效果
以下是设计
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.IO;
namespace 抽奖
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void timer1_Tick(object sender, EventArgs e)//选择listbox.intem
{
Random rnd = new Random();
listBox1.SelectedIndex = rnd.Next(0, listBox1.Items.Count);
}
private void Form1_Load(object sender, EventArgs e)
{
string[] mystr = File.ReadAllLines(System.Environment.CurrentDirectory + "\\成员.txt", Encoding.Default);
foreach (string x in mystr)
{
listBox1.Items.Add(x);
}
}
private void button1_Click(object sender, EventArgs e)
{
timer1.Enabled = true;
}
private void button2_Click(object sender, EventArgs e)
{
timer1.Enabled = false;
label1.Text = listBox1.SelectedItem.ToString();
}
}
}