form1.cs

网上购物系统需求说明网上网上购物系统需求说明购物系统需求说明网上购物系统需求说明

using System;
using System.Drawing;
using System.Windows.Forms;
using System.Collections;
using System.ComponentModel;
using System.Data;

namespace caculator
{
	/// <summary>
	/// Form1 的摘要说明。
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		#region 控件的声明
		private System.Windows.Forms.MainMenu mainMenu1;
		private System.Windows.Forms.MenuItem menuItem_edi;
		private System.Windows.Forms.MenuItem menuItem_cop;
		private System.Windows.Forms.MenuItem menuItem_pas;	
		private System.Windows.Forms.MenuItem menuItem_hel;
		private System.Windows.Forms.MenuItem menuItem_hsj;
		private System.Windows.Forms.MenuItem menuItem_abt;
		private System.Windows.Forms.TextBox txtBox;
		private System.Windows.Forms.Button btn_9;
		private System.Windows.Forms.Button btn_7;
		private System.Windows.Forms.Button btn_8;
		private System.Windows.Forms.Button btn_4;
		private System.Windows.Forms.Button btn_5;
		private System.Windows.Forms.Button btn_6;
		private System.Windows.Forms.Button btn_1;
		private System.Windows.Forms.Button btn_2;
		private System.Windows.Forms.Button btn_3;
		private System.Windows.Forms.Button btn_0;
		private System.Windows.Forms.Button btn_sign;
		private System.Windows.Forms.Button btn_dot;
		private System.Windows.Forms.Button btn_eql;
		private System.Windows.Forms.Button btn_rev;
		private System.Windows.Forms.Button btn_add;
		private System.Windows.Forms.Button btn_sqt;
		private System.Windows.Forms.Button btn_sub;
		private System.Windows.Forms.Button btn_div;
		private System.Windows.Forms.Button btn_mul;
		private System.Windows.Forms.Button btn_c;
		private System.Windows.Forms.Button btn_ce;
		private System.Windows.Forms.Button btn_bak;
		#endregion
		

		/// <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 窗体设计器生成的代码-窗体的属性和方法
		/// <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.mainMenu1 = new System.Windows.Forms.MainMenu();
			this.menuItem_edi = new System.Windows.Forms.MenuItem();
			this.menuItem_cop = new System.Windows.Forms.MenuItem();
			this.menuItem_pas = new System.Windows.Forms.MenuItem();
			this.menuItem_hel = new System.Windows.Forms.MenuItem();
			this.menuItem_hsj = new System.Windows.Forms.MenuItem();
			this.menuItem_abt = new System.Windows.Forms.MenuItem();
			this.txtBox = new System.Windows.Forms.TextBox();
			this.btn_7 = new System.Windows.Forms.Button();
			this.btn_8 = new System.Windows.Forms.Button();
			this.btn_9 = new System.Windows.Forms.Button();
			this.btn_4 = new System.Windows.Forms.Button();
			this.btn_5 = new System.Windows.Forms.Button();
			this.btn_6 = new System.Windows.Forms.Button();
			this.btn_1 = new System.Windows.Forms.Button();
			this.btn_2 = new System.Windows.Forms.Button();
			this.btn_3 = new System.Windows.Forms.Button();
			this.btn_0 = new System.Windows.Forms.Button();
			this.btn_sign = new System.Windows.Forms.Button();
			this.btn_dot = new System.Windows.Forms.Button();
			this.btn_eql = new System.Windows.Forms.Button();
			this.btn_rev = new System.Windows.Forms.Button();
			this.btn_add = new System.Windows.Forms.Button();
			this.btn_sqt = new System.Windows.Forms.Button();
			this.btn_sub = new System.Windows.Forms.Button();
			this.btn_div = new System.Windows.Forms.Button();
			this.btn_mul = new System.Windows.Forms.Button();
			this.btn_c = new System.Windows.Forms.Button();
			this.btn_ce = new System.Windows.Forms.Button();
			this.btn_bak = new System.Windows.Forms.Button();
			this.SuspendLayout();
			// 
			// mainMenu1
			// 
			this.mainMenu1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																					  this.menuItem_edi,
																					  this.menuItem_hel});
			// 
			// menuItem_edi
			// 
			this.menuItem_edi.Index = 0;
			this.menuItem_edi.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																						 this.menuItem_cop,
																						 this.menuItem_pas});
			this.menuItem_edi.Text = "编 辑(&E)";
			// 
			// menuItem_cop
			// 
			this.menuItem_cop.Index = 0;
			this.menuItem_cop.Text = "复制(&C)";
			this.menuItem_cop.Click += new System.EventHandler(this.menuItem_cop_Click);
			// 
			// menuItem_pas
			// 
			this.menuItem_pas.Index = 1;
			this.menuItem_pas.Text = "粘贴(&P)";
			this.menuItem_pas.Click += new System.EventHandler(this.menuItem_pas_Click);
			// 
			// menuItem_hel
			// 
			this.menuItem_hel.Index = 1;
			this.menuItem_hel.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
																						 this.menuItem_hsj,
																						 this.menuItem_abt});
			this.menuItem_hel.Text = "帮 助(&H)";
			// 
			// menuItem_hsj
			// 
			this.menuItem_hsj.Index = 0;
			this.menuItem_hsj.Text = "帮助主题(&H)";
			this.menuItem_hsj.Click += new System.EventHandler(this.menuItem_hsj_Click);
			// 
			// menuItem_abt
			// 
			this.menuItem_abt.Index = 1;
			this.menuItem_abt.Text = "关于计算器(&A)";
			this.menuItem_abt.Click += new System.EventHandler(this.menuItem_abt_Click);
			// 
			// txtBox
			// 
			this.txtBox.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.txtBox.Location = new System.Drawing.Point(16, 0);
			this.txtBox.Name = "txtBox";
			this.txtBox.Size = new System.Drawing.Size(264, 26);
			this.txtBox.TabIndex = 0;
			this.txtBox.Text = "0.";
			this.txtBox.TextAlign = System.Windows.Forms.HorizontalAlignment.Right;
			this.txtBox.TextChanged += new System.EventHandler(this.txtBox_TextChanged);
			// 
			// btn_7
			// 
			this.btn_7.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.btn_7.Location = new System.Drawing.Point(16, 88);
			this.btn_7.Name = "btn_7";
			this.btn_7.Size = new System.Drawing.Size(40, 32);
			this.btn_7.TabIndex = 1;
			this.btn_7.Tag = "7";
			this.btn_7.Text = "7";
			this.btn_7.Click += new System.EventHandler(this.btn_0_Click);
			// 
			// btn_8
			// 
			this.btn_8.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.btn_8.Location = new System.Drawing.Point(64, 88);
			this.btn_8.Name = "btn_8";
			this.btn_8.Size = new System.Drawing.Size(40, 32);
			this.btn_8.TabIndex = 2;
			this.btn_8.Tag = "8";
			this.btn_8.Text = "8";
			this.btn_8.Click += new System.EventHandler(this.btn_0_Click);
			// 
			// btn_9
			// 
			this.btn_9.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.btn_9.Location = new System.Drawing.Point(112, 88);
			this.btn_9.Name = "btn_9";
			this.btn_9.Size = new System.Drawing.Size(40, 32);
			this.btn_9.TabIndex = 3;
			this.btn_9.Tag = "9";
			this.btn_9.Text = "9";
			this.btn_9.Click += new System.EventHandler(this.btn_0_Click);
			// 
			// btn_4
			// 
			this.btn_4.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.btn_4.Location = new System.Drawing.Point(16, 128);
			this.btn_4.Name = "btn_4";
			this.btn_4.Size = new System.Drawing.Size(40, 32);
			this.btn_4.TabIndex = 4;
			this.btn_4.Tag = "4";
			this.btn_4.Text = "4";
			this.btn_4.Click += new System.EventHandler(this.btn_0_Click);
			// 
			// btn_5
			// 
			this.btn_5.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.btn_5.Location = new System.Drawing.Point(64, 128);
			this.btn_5.Name = "btn_5";
			this.btn_5.Size = new System.Drawing.Size(40, 32);
			this.btn_5.TabIndex = 5;
			this.btn_5.Tag = "5";
			this.btn_5.Text = "5";
			this.btn_5.Click += new System.EventHandler(this.btn_0_Click);
			// 
			// btn_6
			// 
			this.btn_6.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.btn_6.Location = new System.Drawing.Point(112, 128);
			this.btn_6.Name = "btn_6";
			this.btn_6.Size = new System.Drawing.Size(40, 32);
			this.btn_6.TabIndex = 6;
			this.btn_6.Tag = "6";
			this.btn_6.Text = "6";
			this.btn_6.Click += new System.EventHandler(this.btn_0_Click);
			// 
			// btn_1
			// 
			this.btn_1.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.btn_1.Location = new System.Drawing.Point(16, 168);
			this.btn_1.Name = "btn_1";
			this.btn_1.Size = new System.Drawing.Size(40, 32);
			this.btn_1.TabIndex = 7;
			this.btn_1.Tag = "1";
			this.btn_1.Text = "1";
			this.btn_1.Click += new System.EventHandler(this.btn_0_Click);
			// 
			// btn_2
			// 
			this.btn_2.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.btn_2.Location = new System.Drawing.Point(64, 168);
			this.btn_2.Name = "btn_2";
			this.btn_2.Size = new System.Drawing.Size(40, 32);
			this.btn_2.TabIndex = 8;
			this.btn_2.Tag = "2";
			this.btn_2.Text = "2";
			this.btn_2.Click += new System.EventHandler(this.btn_0_Click);
			// 
			// btn_3
			// 
			this.btn_3.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.btn_3.Location = new System.Drawing.Point(112, 168);
			this.btn_3.Name = "btn_3";
			this.btn_3.Size = new System.Drawing.Size(40, 32);
			this.btn_3.TabIndex = 9;
			this.btn_3.Tag = "3";
			this.btn_3.Text = "3";
			this.btn_3.Click += new System.EventHandler(this.btn_0_Click);
			// 
			// btn_0
			// 
			this.btn_0.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.btn_0.Location = new System.Drawing.Point(16, 208);
			this.btn_0.Name = "btn_0";
			this.btn_0.Size = new System.Drawing.Size(40, 32);
			this.btn_0.TabIndex = 10;
			this.btn_0.Tag = "0";
			this.btn_0.Text = "0";
			this.btn_0.Click += new System.EventHandler(this.btn_0_Click);
			// 
			// btn_sign
			// 
			this.btn_sign.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.btn_sign.Location = new System.Drawing.Point(64, 208);
			this.btn_sign.Name = "btn_sign";
			this.btn_sign.Size = new System.Drawing.Size(40, 32);
			this.btn_sign.TabIndex = 11;
			this.btn_sign.Text = "+/-";
			this.btn_sign.Click += new System.EventHandler(this.btn_Oper);
			// 
			// btn_dot
			// 
			this.btn_dot.Font = new System.Drawing.Font("宋体", 22F);
			this.btn_dot.Location = new System.Drawing.Point(112, 208);
			this.btn_dot.Name = "btn_dot";
			this.btn_dot.Size = new System.Drawing.Size(40, 32);
			this.btn_dot.TabIndex = 12;
			this.btn_dot.Tag = "0";
			this.btn_dot.Text = ".";
			this.btn_dot.TextAlign = System.Drawing.ContentAlignment.BottomRight;
			this.btn_dot.Click += new System.EventHandler(this.btn_Oper);
			// 
			// btn_eql
			// 
			this.btn_eql.Font = new System.Drawing.Font("宋体", 20F, System.Drawing.FontStyle.Bold);
			this.btn_eql.Location = new System.Drawing.Point(184, 208);
			this.btn_eql.Name = "btn_eql";
			this.btn_eql.Size = new System.Drawing.Size(88, 32);
			this.btn_eql.TabIndex = 13;
			this.btn_eql.Text = "=";
			this.btn_eql.Click += new System.EventHandler(this.btn_eql_Click);
			// 
			// btn_rev
			// 
			this.btn_rev.Font = new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Bold);
			this.btn_rev.Location = new System.Drawing.Point(184, 168);
			this.btn_rev.Name = "btn_rev";
			this.btn_rev.Size = new System.Drawing.Size(40, 32);
			this.btn_rev.TabIndex = 14;
			this.btn_rev.Text = "1/x";
			this.btn_rev.Click += new System.EventHandler(this.btn_Oper);
			// 
			// btn_add
			// 
			this.btn_add.Font = new System.Drawing.Font("宋体", 15F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.btn_add.Location = new System.Drawing.Point(232, 168);
			this.btn_add.Name = "btn_add";
			this.btn_add.Size = new System.Drawing.Size(40, 32);
			this.btn_add.TabIndex = 15;
			this.btn_add.Text = "+";
			this.btn_add.Click += new System.EventHandler(this.btn_Oper);
			// 
			// btn_sqt
			// 
			this.btn_sqt.FlatStyle = System.Windows.Forms.FlatStyle.System;
			this.btn_sqt.Font = new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.btn_sqt.Location = new System.Drawing.Point(184, 128);
			this.btn_sqt.Name = "btn_sqt";
			this.btn_sqt.Size = new System.Drawing.Size(40, 32);
			this.btn_sqt.TabIndex = 16;
			this.btn_sqt.Text = "sqt";
			this.btn_sqt.Click += new System.EventHandler(this.btn_Oper);
			// 
			// btn_sub
			// 
			this.btn_sub.Font = new System.Drawing.Font("宋体", 18F, System.Drawing.FontStyle.Bold);
			this.btn_sub.Location = new System.Drawing.Point(232, 128);
			this.btn_sub.Name = "btn_sub";
			this.btn_sub.Size = new System.Drawing.Size(40, 32);
			this.btn_sub.TabIndex = 17;
			this.btn_sub.Text = "-";
			this.btn_sub.Click += new System.EventHandler(this.btn_Oper);
			// 
			// btn_div
			// 
			this.btn_div.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.btn_div.Location = new System.Drawing.Point(184, 88);
			this.btn_div.Name = "btn_div";
			this.btn_div.Size = new System.Drawing.Size(40, 32);
			this.btn_div.TabIndex = 18;
			this.btn_div.Text = "/";
			this.btn_div.Click += new System.EventHandler(this.btn_Oper);
			// 
			// btn_mul
			// 
			this.btn_mul.Font = new System.Drawing.Font("宋体", 12F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.btn_mul.Location = new System.Drawing.Point(232, 88);
			this.btn_mul.Name = "btn_mul";
			this.btn_mul.Size = new System.Drawing.Size(40, 32);
			this.btn_mul.TabIndex = 19;
			this.btn_mul.Text = "*";
			this.btn_mul.Click += new System.EventHandler(this.btn_Oper);
			// 
			// btn_c
			// 
			this.btn_c.Font = new System.Drawing.Font("宋体", 9F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
			this.btn_c.Location = new System.Drawing.Point(192, 40);
			this.btn_c.Name = "btn_c";
			this.btn_c.Size = new System.Drawing.Size(80, 32);
			this.btn_c.TabIndex = 20;