C#实现的简单随机数产生器功能示例

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
namespace Math
{
  public partial class Form1 : Form
  {
    public Form1()
    {
      InitializeComponent();
    }
    System.Random t=new System .Random() ;//初始化随机数函数
    string num;//定义一个字符串变量，用于显示
    private void button1_Click(object sender, EventArgs e)
    {
      timer1.Start();
    }
    private void button2_Click(object sender, EventArgs e)
    {
      timer1.Stop();
    }
    private void timer1_Tick(object sender, EventArgs e)
    {
      this.num = Convert.ToString(t.Next(1,1000));//产生1到1000之间的一个随机数
      textBox1.Text = num;
    }
    private void button3_Click(object sender, EventArgs e)
    {
      this.Close();//关闭程序
    }
  }
}