由于老师需要，让我写一个随机抽号器，，就很简单的写一个，用C#写的。主要依靠random来实现一个随机数以及list可变长数组实现的。
由于项目难度不大，我就直接放代码了。
using System;
using System.Collections.Generic;
using System.Globalization;
using System.Linq;
using System.Threading;
using System.Windows.Forms;
namespace 随机抽号器
{
public partial class Form1 : Form
{
private int person_number=0;
private int time = 1;
private List<int> arr = new List<int>();
public Form1()
{
InitializeComponent();
Thread thread = new Thread(set_index);
thread.IsBackground = true;
thread.Start();
button3.Enabled = false;
}
private void set_index()
{
while (true)
{
Random rd = new Random(Convert.ToInt32(DateTime.Now.ToString("ddHHmmss", DateTimeFormatInfo.InvariantInfo)));
while (person_number != 0)
{
Random rd2 = new Random(rd.Next(1, 65535) - rd.Next(1, 65535));
int side = rd2.Next(1, person_number + 1);
if (!arr.Contains(side))
{
arr.Add(side);
}
}
if (person_number == arr.Count && person_number!=0&&arr.Count!=0)
{
break;
}
Thread.Sleep(1000);
}
}
private void button1_Click(object sender, EventArgs e)
{
button3.Enabled = true;
if (textBox1.Text == "")
{
MessageBox.Show("请先输入人数！");
}
else {
person_number =Convert.ToInt32(textBox1.Text);
richTextBox1.AppendText("成功选择人数！当前抽号人数：" + textBox1.Text + "人\r\n");
button1.Enabled = false;
}
}
private void button2_Click(object sender, EventArgs e)
{
richTextBox1.AppendText("\r\n成功清空当前人数，请重新选择人数！\r\n\r\n");
button1.Enabled = true;
button3.Enabled = true;
person_number = 0;
time = 1;
arr.Clear();
Thread thread = new Thread(set_index);
thread.IsBackground = true;
thread.Start();
}
private void button3_Click(object sender, EventArgs e)
{
richTextBox1.AppendText("第" + time.ToString() + "个人的工号是：" + arr[0] + "\r\n");
arr.RemoveAt(0);
if ((time)== person_number) {
button3.Enabled = false;
richTextBox1.AppendText("操作完成！所有工号已分配！");
}
time++;
}
private void button4_Click(object sender, EventArgs e)
{
richTextBox1.Clear();
}
}
}