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    }  }}