form1.cs

模拟彩票生成随即数

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.IO;
namespace random
{
	/// <summary>
	/// Form1 的摘要说明。
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Label label1;
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.Button button2;
		private System.Windows.Forms.Label label2;
		private System.Windows.Forms.Label label3;
		private System.Windows.Forms.ListBox listBox1;
		private System.Windows.Forms.SaveFileDialog saveFileDialog1;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public Form1()
		{
			//
			// Windows 窗体设计器支持所必需的
			//
			InitializeComponent();

			//
			// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
			//
		}

		/// <summary>
		/// 清理所有正在使用的资源。
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if (components != null) 
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{
			System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(Form1));
			this.label1 = new System.Windows.Forms.Label();
			this.button1 = new System.Windows.Forms.Button();
			this.button2 = new System.Windows.Forms.Button();
			this.label2 = new System.Windows.Forms.Label();
			this.label3 = new System.Windows.Forms.Label();
			this.listBox1 = new System.Windows.Forms.ListBox();
			this.saveFileDialog1 = new System.Windows.Forms.SaveFileDialog();
			this.SuspendLayout();
			// 
			// label1
			// 
			this.label1.BorderStyle = System.Windows.Forms.BorderStyle.FixedSingle;
			this.label1.Font = new System.Drawing.Font("仿宋_GB2312", 42F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.label1.ForeColor = System.Drawing.Color.Red;
			this.label1.Location = new System.Drawing.Point(88, 56);
			this.label1.Name = "label1";
			this.label1.Size = new System.Drawing.Size(184, 80);
			this.label1.TabIndex = 0;
			this.label1.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
			// 
			// button1
			// 
			this.button1.ForeColor = System.Drawing.Color.FromArgb(((System.Byte)(0)), ((System.Byte)(0)), ((System.Byte)(192)));
			this.button1.Location = new System.Drawing.Point(96, 160);
			this.button1.Name = "button1";
			this.button1.Size = new System.Drawing.Size(64, 80);
			this.button1.TabIndex = 2;
			this.button1.Text = "保存历史数据";
			this.button1.Click += new System.EventHandler(this.button1_Click);
			// 
			// button2
			// 
			this.button2.Font = new System.Drawing.Font("楷体_GB2312", 15F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.button2.ForeColor = System.Drawing.Color.FromArgb(((System.Byte)(0)), ((System.Byte)(0)), ((System.Byte)(192)));
			this.button2.Location = new System.Drawing.Point(184, 160);
			this.button2.Name = "button2";
			this.button2.Size = new System.Drawing.Size(96, 80);
			this.button2.TabIndex = 1;
			this.button2.Text = "开  始";
			this.button2.Click += new System.EventHandler(this.button2_Click);
			// 
			// label2
			// 
			this.label2.Font = new System.Drawing.Font("隶书", 15.75F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.label2.ForeColor = System.Drawing.Color.Red;
			this.label2.Location = new System.Drawing.Point(88, 8);
			this.label2.Name = "label2";
			this.label2.Size = new System.Drawing.Size(184, 32);
			this.label2.TabIndex = 3;
			this.label2.Text = "幸运数字";
			this.label2.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
			// 
			// label3
			// 
			this.label3.Font = new System.Drawing.Font("隶书", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.label3.ForeColor = System.Drawing.Color.FromArgb(((System.Byte)(0)), ((System.Byte)(0)), ((System.Byte)(192)));
			this.label3.Location = new System.Drawing.Point(8, 8);
			this.label3.Name = "label3";
			this.label3.Size = new System.Drawing.Size(72, 32);
			this.label3.TabIndex = 5;
			this.label3.Text = "历史数字";
			this.label3.TextAlign = System.Drawing.ContentAlignment.MiddleCenter;
			// 
			// listBox1
			// 
			this.listBox1.BorderStyle = System.Windows.Forms.BorderStyle.None;
			this.listBox1.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.listBox1.ForeColor = System.Drawing.Color.FromArgb(((System.Byte)(0)), ((System.Byte)(192)), ((System.Byte)(192)));
			this.listBox1.ItemHeight = 16;
			this.listBox1.Location = new System.Drawing.Point(8, 40);
			this.listBox1.Name = "listBox1";
			this.listBox1.ScrollAlwaysVisible = true;
			this.listBox1.Size = new System.Drawing.Size(64, 208);
			this.listBox1.TabIndex = 6;
			// 
			// saveFileDialog1
			// 
			this.saveFileDialog1.FileName = "历史数据";
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(292, 273);
			this.Controls.AddRange(new System.Windows.Forms.Control[] {
																		  this.listBox1,
																		  this.label3,
																		  this.label2,
																		  this.button2,
																		  this.button1,
																		  this.label1});
			this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
			this.Name = "Form1";
			this.Text = "random";
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// 应用程序的主入口点。
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}

		private void button2_Click(object sender, System.EventArgs e)
		{
			System.Random rnd=new System.Random();
			int nbr;
			nbr=(int)rnd.Next(0,10);
			this.label1.Text=nbr.ToString();
			this.button2.Text="下一轮";
			this.listBox1.Items.Add(label1.Text);
			listBox1.SelectedIndex=listBox1.Items.Count-1;
	
		}

		private void button1_Click(object sender, System.EventArgs e)
		{
			mysave();
			
		}
		private void mysave()
		{
			SaveFileDialog saveFileDialog1=new SaveFileDialog();
			saveFileDialog1.Filter = "txt files (*.txt)|*.txt|All files (*.*)|*.*";
			//saveFileDialog1.FilterIndex = 1;
			saveFileDialog1.OverwritePrompt=true;
			saveFileDialog1.RestoreDirectory = true;
			saveFileDialog1.CreatePrompt=true;
			saveFileDialog1.FileName="历史数据";
			if(saveFileDialog1.ShowDialog()==DialogResult.OK)
			{
				string names=saveFileDialog1.FileName;
				//saveFileDialog1.InitialDirectory
				StreamWriter writer = new StreamWriter(saveFileDialog1.InitialDirectory+names);
				int i = listBox1.Items.Count;
				for(int j=0;j<i;j++)
				{
					writer.WriteLine(listBox1.Items[j].ToString());
				}
				writer.Close();
				MessageBox.Show("保存完毕");
			}

		}

		
	}
}