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

namespace comput
{
??? /// <summary>
??? /// 這是一個計算器的簡單實現(xiàn)。
??? /// </summary>

??? public class Form1 : System.Windows.Forms.Form
??? {
??????? #region 控件聲明
???
??????? private System.Windows.Forms.TextBox txtShow;
??????? private System.Windows.Forms.GroupBox groupBox1;
??????? private System.Windows.Forms.Button btn_rev;
??????? private System.Windows.Forms.Button btn_dot;
??????? private System.Windows.Forms.Button btn_add;
??????? private System.Windows.Forms.Button btn_equ;
??????? private System.Windows.Forms.Button btn_sign;
??????? private System.Windows.Forms.Button btn_sub;
??????? private System.Windows.Forms.Button btn_mul;
??????? private System.Windows.Forms.Button btn_0;
??????? private System.Windows.Forms.Button btn_3;
??????? private System.Windows.Forms.Button btn_2;
??????? private System.Windows.Forms.Button btn_1;
??????? private System.Windows.Forms.Button btn_6;
??????? private System.Windows.Forms.Button btn_5;
??????? private System.Windows.Forms.Button btn_4;
??????? private System.Windows.Forms.Button btn_sqrt;
??????? private System.Windows.Forms.Button btn_div;
??????? private System.Windows.Forms.Button btn_7;
??????? private System.Windows.Forms.Button btn_8;
??????? private System.Windows.Forms.Button btn_9;
??????? private System.Windows.Forms.MainMenu mainMenu1;
??????? private System.Windows.Forms.MenuItem menuItem1;
??????? private System.Windows.Forms.Button btn_sqr;
??????? private System.Windows.Forms.MenuItem menuItem2;
??????? private System.Windows.Forms.MenuItem menuItem3;
??????? private System.Windows.Forms.MenuItem menuItem4;
??????? private System.Windows.Forms.MenuItem menuItem5;
??????? private System.Windows.Forms.MenuItem menuItem6;
??????? private System.Windows.Forms.Button c;
??????? private System.Windows.Forms.Button ce;
??????? private System.Windows.Forms.MenuItem menuItem8;
??????? private System.Windows.Forms.MenuItem menuItem9;
??????? private System.Windows.Forms.MenuItem menuItem10;
??????? /// <summary>
??????? /// 必需的設(shè)計器變量。
??????? /// </summary>
??????? private System.ComponentModel.Container components = null;
???????
???????
??????? public Form1()
??????? {
??????????? //
??????????? // Windows 窗體設(shè)計器支持所必需的
??????????? //
??????????? InitializeComponent();

??????????? //
??????????? // TODO: 在 InitializeComponent 調(diào)用后添加任何構(gòu)造函數(shù)代碼
??????????? //
??????? }
???????

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

??????? #region 各控件的屬性的方法Windows Form Designer generated code
??????? /// <summary>
??????? /// 設(shè)計器支持所需的方法 - 不要使用代碼編輯器修改
??????? /// 此方法的內(nèi)容。
??????? /// </summary>
??????? private void InitializeComponent()
??????? {
??????????? System.Resources.ResourceManager resources = new System.Resources.ResourceManager(typeof(Form1));
??????????? this.txtShow = new System.Windows.Forms.TextBox();
??????????? this.groupBox1 = new System.Windows.Forms.GroupBox();
??????????? this.c = new System.Windows.Forms.Button();
??????????? this.ce = new System.Windows.Forms.Button();
??????????? this.btn_rev = new System.Windows.Forms.Button();
??????????? this.btn_dot = new System.Windows.Forms.Button();
??????????? this.btn_add = new System.Windows.Forms.Button();
??????????? this.btn_equ = new System.Windows.Forms.Button();
??????????? this.btn_sign = new System.Windows.Forms.Button();
??????????? this.btn_sub = new System.Windows.Forms.Button();
??????????? this.btn_mul = new System.Windows.Forms.Button();
??????????? this.btn_0 = new System.Windows.Forms.Button();
??????????? this.btn_3 = new System.Windows.Forms.Button();
??????????? this.btn_2 = new System.Windows.Forms.Button();
??????????? this.btn_1 = new System.Windows.Forms.Button();
??????????? this.btn_6 = new System.Windows.Forms.Button();
??????????? this.btn_5 = new System.Windows.Forms.Button();
??????????? this.btn_4 = new System.Windows.Forms.Button();
??????????? this.btn_sqrt = new System.Windows.Forms.Button();
??????????? this.btn_div = new System.Windows.Forms.Button();
??????????? 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_sqr = new System.Windows.Forms.Button();
??????????? this.mainMenu1 = new System.Windows.Forms.MainMenu();
??????????? this.menuItem1 = new System.Windows.Forms.MenuItem();
??????????? this.menuItem2 = new System.Windows.Forms.MenuItem();
??????????? this.menuItem3 = new System.Windows.Forms.MenuItem();
??????????? this.menuItem4 = new System.Windows.Forms.MenuItem();
??????????? this.menuItem5 = new System.Windows.Forms.MenuItem();
??????????? this.menuItem6 = new System.Windows.Forms.MenuItem();
??????????? this.menuItem8 = new System.Windows.Forms.MenuItem();
??????????? this.menuItem9 = new System.Windows.Forms.MenuItem();
??????????? this.menuItem10 = new System.Windows.Forms.MenuItem();
??????????? this.groupBox1.SuspendLayout();
??????????? this.SuspendLayout();
??????????? //
??????????? // txtShow
??????????? //
??????????? this.txtShow.BackColor = System.Drawing.Color.FromArgb(((System.Byte)(192)), ((System.Byte)(192)), ((System.Byte)(255)));
??????????? this.txtShow.Font = new System.Drawing.Font("宋體", 10.5F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
??????????? this.txtShow.ForeColor = System.Drawing.Color.Purple;
??????????? this.txtShow.Location = new System.Drawing.Point(25, 8);
??????????? this.txtShow.Name = "txtShow";
??????????? this.txtShow.Size = new System.Drawing.Size(228, 23);
??????????? this.txtShow.TabIndex = 1;
??????????? this.txtShow.Text = "0.";
??????????? this.txtShow.TextAlign = System.Windows.Forms.HorizontalAlignment.Right;
??????????? //
??????????? // groupBox1
??????????? //
??????????? this.groupBox1.Controls.Add(this.c);
??????????? this.groupBox1.Controls.Add(this.ce);
??????????? this.groupBox1.Controls.Add(this.btn_rev);
??????????? this.groupBox1.Controls.Add(this.btn_dot);
??????????? this.groupBox1.Controls.Add(this.btn_add);
??????????? this.groupBox1.Controls.Add(this.btn_equ);
??????????? this.groupBox1.Controls.Add(this.btn_sign);
??????????? this.groupBox1.Controls.Add(this.btn_sub);
??????????? this.groupBox1.Controls.Add(this.btn_mul);
??????????? this.groupBox1.Controls.Add(this.btn_0);
??????????? this.groupBox1.Controls.Add(this.btn_3);
??????????? this.groupBox1.Controls.Add(this.btn_2);
??????????? this.groupBox1.Controls.Add(this.btn_1);
??????????? this.groupBox1.Controls.Add(this.btn_6);
??????????? this.groupBox1.Controls.Add(this.btn_5);
??????????? this.groupBox1.Controls.Add(this.btn_4);
??????????? this.groupBox1.Controls.Add(this.btn_sqrt);
??????????? this.groupBox1.Controls.Add(this.btn_div);
??????????? this.groupBox1.Controls.Add(this.btn_7);
??????????? this.groupBox1.Controls.Add(this.btn_8);
??????????? this.groupBox1.Controls.Add(this.btn_9);
??????????? this.groupBox1.Controls.Add(this.btn_sqr);
??????????? this.groupBox1.Location = new System.Drawing.Point(24, 40);
??????????? this.groupBox1.Name = "groupBox1";
??????????? this.groupBox1.Size = new System.Drawing.Size(232, 184);
??????????? this.groupBox1.TabIndex = 21;
??????????? this.groupBox1.TabStop = false;
??????????? this.groupBox1.Text = "計算機區(qū)";
??????????? //
??????????? // c
??????????? //
??????????? this.c.Font = new System.Drawing.Font("宋體", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
??????????? this.c.ForeColor = System.Drawing.Color.Red;
??????????? this.c.Location = new System.Drawing.Point(178, 48);
??????????? this.c.Name = "c";
??????????? this.c.Size = new System.Drawing.Size(36, 61);
??????????? this.c.TabIndex = 41;
??????????? this.c.Text = "C";
??????????? this.c.Click += new System.EventHandler(this.btn_Oper);
??????????? //
??????????? // ce
??????????? //
??????????? this.ce.Font = new System.Drawing.Font("宋體", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
??????????? this.ce.ForeColor = System.Drawing.Color.Red;
??????????? this.ce.Location = new System.Drawing.Point(138, 16);
??????????? this.ce.Name = "ce";
??????????? this.ce.Size = new System.Drawing.Size(76, 29);
??????????? this.ce.TabIndex = 40;
??????????? this.ce.Text = "CE";
??????????? this.ce.Click += new System.EventHandler(this.btn_Oper);
??????????? //
??????????? // btn_rev
??????????? //
??????????? this.btn_rev.Font = new System.Drawing.Font("宋體", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
??????????? this.btn_rev.ForeColor = System.Drawing.Color.Blue;
??????????? this.btn_rev.Location = new System.Drawing.Point(178, 112);
??????????? this.btn_rev.Name = "btn_rev";
??????????? this.btn_rev.Size = new System.Drawing.Size(36, 29);
??????????? this.btn_rev.TabIndex = 39;
??????????? this.btn_rev.Text = "1/x";
??????????? this.btn_rev.Click += new System.EventHandler(this.btn_Oper);
??????????? //
??????????? // btn_dot
??????????? //
??????????? this.btn_dot.Font = new System.Drawing.Font("宋體", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
??????????? this.btn_dot.Location = new System.Drawing.Point(98, 144);
??????????? this.btn_dot.Name = "btn_dot";
??????????? this.btn_dot.Size = new System.Drawing.Size(36, 29);
??????????? this.btn_dot.TabIndex = 38;
??????????? this.btn_dot.Tag = "0";
??????????? this.btn_dot.Text = ".";
??????????? this.btn_dot.Click += new System.EventHandler(this.btn_Oper);
??????????? //
??????????? // btn_add
??????????? //
??????????? this.btn_add.Font = new System.Drawing.Font("宋體", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
??????????? this.btn_add.ForeColor = System.Drawing.Color.Red;
??????????? this.btn_add.Location = new System.Drawing.Point(138, 144);
??????????? this.btn_add.Name = "btn_add";
??????????? this.btn_add.Size = new System.Drawing.Size(36, 29);
??????????? this.btn_add.TabIndex = 37;
??????????? this.btn_add.Text = "+";
??????????? this.btn_add.Click += new System.EventHandler(this.btn_Oper);
??????????? //
??????????? // btn_equ
??????????? //
??????????? this.btn_equ.Font = new System.Drawing.Font("宋體", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
??????????? this.btn_equ.ForeColor = System.Drawing.Color.Red;
??????????? this.btn_equ.Location = new System.Drawing.Point(178, 144);
??????????? this.btn_equ.Name = "btn_equ";
??????????? this.btn_equ.Size = new System.Drawing.Size(36, 29);
??????????? this.btn_equ.TabIndex = 36;
??????????? this.btn_equ.Text = "=";
??????????? this.btn_equ.Click += new System.EventHandler(this.btn_equ_Click);
??????????? //
??????????? // btn_sign
??????????? //
??????????? this.btn_sign.Font = new System.Drawing.Font("宋體", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
??????????? this.btn_sign.ForeColor = System.Drawing.Color.Blue;
??????????? this.btn_sign.Location = new System.Drawing.Point(58, 144);
??????????? this.btn_sign.Name = "btn_sign";
??????????? this.btn_sign.Size = new System.Drawing.Size(36, 29);
??????????? this.btn_sign.TabIndex = 35;
??????????? this.btn_sign.Text = "+/-";
??????????? this.btn_sign.Click += new System.EventHandler(this.btn_Oper);
??????????? //
??????????? // btn_sub
??????????? //
??????????? this.btn_sub.Font = new System.Drawing.Font("宋體", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
??????????? this.btn_sub.ForeColor = System.Drawing.Color.Red;
??????????? this.btn_sub.Location = new System.Drawing.Point(138, 112);
??????????? this.btn_sub.Name = "btn_sub";
??????????? this.btn_sub.Size = new System.Drawing.Size(36, 29);
??????????? this.btn_sub.TabIndex = 34;
??????????? this.btn_sub.Text = "-";
??????????? this.btn_sub.Click += new System.EventHandler(this.btn_Oper);
??????????? //
??????????? // btn_mul
??????????? //
??????????? this.btn_mul.Font = new System.Drawing.Font("宋體", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
??????????? this.btn_mul.ForeColor = System.Drawing.Color.Red;
??????????? this.btn_mul.Location = new System.Drawing.Point(138, 80);
??????????? this.btn_mul.Name = "btn_mul";
??????????? this.btn_mul.Size = new System.Drawing.Size(36, 29);
??????????? this.btn_mul.TabIndex = 33;
??????????? this.btn_mul.Text = "*";
??????????? this.btn_mul.Click += new System.EventHandler(this.btn_Oper);
??????????? //
??????????? // btn_0
??????????? //
??????????? this.btn_0.Font = new System.Drawing.Font("宋體", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
??????????? this.btn_0.ForeColor = System.Drawing.Color.Blue;
??????????? this.btn_0.Location = new System.Drawing.Point(18, 144);
??????????? this.btn_0.Name = "btn_0";
??????????? this.btn_0.Size = new System.Drawing.Size(36, 29);
??????????? this.btn_0.TabIndex = 32;
??????????? this.btn_0.Tag = "0";
??????????? this.btn_0.Text = "0";
??????????? this.btn_0.Click += new System.EventHandler(this.btn_0_Click);
??????????? //
??????????? // btn_3
??????????? //
??????????? this.btn_3.Font = new System.Drawing.Font("宋體", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
??????????? this.btn_3.ForeColor = System.Drawing.Color.Blue;
??????????? this.btn_3.Location = new System.Drawing.Point(98, 112);
??????????? this.btn_3.Name = "btn_3";
??????????? this.btn_3.Size = new System.Drawing.Size(36, 29);
??????????? this.btn_3.TabIndex = 31;
??????????? this.btn_3.Tag = "3";
??????????? this.btn_3.Text = "3";
??????????? this.btn_3.Click += new System.EventHandler(this.btn_0_Click);
??????????? //
??????????? // btn_2
??????????? //
??????????? this.btn_2.Font = new System.Drawing.Font("宋體", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
??????????? this.btn_2.ForeColor = System.Drawing.Color.Blue;
??????????? this.btn_2.Location = new System.Drawing.Point(58, 112);
??????????? this.btn_2.Name = "btn_2";
??????????? this.btn_2.Size = new System.Drawing.Size(36, 29);
??????????? this.btn_2.TabIndex = 30;
??????????? this.btn_2.Tag = "2";
??????????? this.btn_2.Text = "2";
??????????? this.btn_2.Click += new System.EventHandler(this.btn_0_Click);
??????????? //
??????????? // btn_1
??????????? //
??????????? this.btn_1.Font = new System.Drawing.Font("宋體", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
??????????? this.btn_1.ForeColor = System.Drawing.Color.Blue;
??????????? this.btn_1.Location = new System.Drawing.Point(18, 112);
??????????? this.btn_1.Name = "btn_1";
??????????? this.btn_1.Size = new System.Drawing.Size(36, 29);
??????????? this.btn_1.TabIndex = 29;
??????????? this.btn_1.Tag = "1";
??????????? this.btn_1.Text = "1";
??????????? this.btn_1.Click += new System.EventHandler(this.btn_0_Click);
??????????? //
??????????? // btn_6
??????????? //
??????????? this.btn_6.Font = new System.Drawing.Font("宋體", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
??????????? this.btn_6.ForeColor = System.Drawing.Color.Blue;
??????????? this.btn_6.Location = new System.Drawing.Point(98, 80);
??????????? this.btn_6.Name = "btn_6";
??????????? this.btn_6.Size = new System.Drawing.Size(36, 29);
??????????? this.btn_6.TabIndex = 28;
??????????? this.btn_6.Tag = "6";
??????????? this.btn_6.Text = "6";
??????????? this.btn_6.Click += new System.EventHandler(this.btn_0_Click);
??????????? //
??????????? // btn_5
??????????? //
??????????? this.btn_5.Font = new System.Drawing.Font("宋體", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
??????????? this.btn_5.ForeColor = System.Drawing.Color.Blue;
??????????? this.btn_5.Location = new System.Drawing.Point(58, 80);
??????????? this.btn_5.Name = "btn_5";
??????????? this.btn_5.Size = new System.Drawing.Size(36, 29);
??????????? this.btn_5.TabIndex = 27;
??????????? this.btn_5.Tag = "5";
??????????? this.btn_5.Text = "5";
??????????? this.btn_5.Click += new System.EventHandler(this.btn_0_Click);
??????????? //
??????????? // btn_4
??????????? //
??????????? this.btn_4.Font = new System.Drawing.Font("宋體", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
??????????? this.btn_4.ForeColor = System.Drawing.Color.Blue;
??????????? this.btn_4.Location = new System.Drawing.Point(18, 80);
??????????? this.btn_4.Name = "btn_4";
??????????? this.btn_4.Size = new System.Drawing.Size(36, 29);
??????????? this.btn_4.TabIndex = 26;
??????????? this.btn_4.Tag = "4";
??????????? this.btn_4.Text = "4";
??????????? this.btn_4.Click += new System.EventHandler(this.btn_0_Click);
??????????? //
??????????? // btn_sqrt
??????????? //
??????????? this.btn_sqrt.Font = new System.Drawing.Font("宋體", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
??????????? this.btn_sqrt.ForeColor = System.Drawing.Color.Blue;
??????????? this.btn_sqrt.Location = new System.Drawing.Point(18, 16);
??????????? this.btn_sqrt.Name = "btn_sqrt";
??????????? this.btn_sqrt.Size = new System.Drawing.Size(76, 29);
??????????? this.btn_sqrt.TabIndex = 25;
??????????? this.btn_sqrt.Text = "sqrt";
??????????? this.btn_sqrt.Click += new System.EventHandler(this.btn_Oper);
??????????? //
??????????? // btn_div
??????????? //
??????????? this.btn_div.Font = new System.Drawing.Font("宋體", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
??????????? this.btn_div.ForeColor = System.Drawing.Color.Red;
??????????? this.btn_div.Location = new System.Drawing.Point(138, 48);
??????????? this.btn_div.Name = "btn_div";
??????????? this.btn_div.Size = new System.Drawing.Size(36, 29);
??????????? this.btn_div.TabIndex = 24;
??????????? this.btn_div.Text = "/";
??????????? this.btn_div.Click += new System.EventHandler(this.btn_Oper);
??????????? //
??????????? // btn_7
??????????? //
??????????? this.btn_7.Font = new System.Drawing.Font("宋體", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
??????????? this.btn_7.ForeColor = System.Drawing.Color.Blue;
??????????? this.btn_7.Location = new System.Drawing.Point(18, 48);
??????????? this.btn_7.Name = "btn_7";
??????????? this.btn_7.Size = new System.Drawing.Size(36, 29);
??????????? this.btn_7.TabIndex = 23;
??????????? 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("宋體", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
??????????? this.btn_8.ForeColor = System.Drawing.Color.Blue;
??????????? this.btn_8.Location = new System.Drawing.Point(58, 48);
??????????? this.btn_8.Name = "btn_8";
??????????? this.btn_8.Size = new System.Drawing.Size(36, 29);
??????????? this.btn_8.TabIndex = 22;
??????????? 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("宋體", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
??????????? this.btn_9.ForeColor = System.Drawing.Color.Blue;
??????????? this.btn_9.Location = new System.Drawing.Point(98, 48);
??????????? this.btn_9.Name = "btn_9";
??????????? this.btn_9.Size = new System.Drawing.Size(36, 29);
??????????? this.btn_9.TabIndex = 21;
??????????? this.btn_9.Tag = "9";
??????????? this.btn_9.Text = "9";
??????????? this.btn_9.Click += new System.EventHandler(this.btn_0_Click);
??????????? //
??????????? // btn_sqr
??????????? //
??????????? this.btn_sqr.Font = new System.Drawing.Font("宋體", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
??????????? this.btn_sqr.ForeColor = System.Drawing.Color.Blue;
??????????? this.btn_sqr.Location = new System.Drawing.Point(98, 16);
??????????? this.btn_sqr.Name = "btn_sqr";
??????????? this.btn_sqr.Size = new System.Drawing.Size(36, 29);
??????????? this.btn_sqr.TabIndex = 19;
??????????? this.btn_sqr.Text = "sqr";
??????????? this.btn_sqr.Click += new System.EventHandler(this.btn_Oper);
??????????? //
??????????? // mainMenu1
??????????? //
??????????? this.mainMenu1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
????????????????????????????????????????????????????????????????????????????????????? this.menuItem8,
????????????????????????????????????????????????????????????????????????????????????? this.menuItem1,
????????????????????????????????????????????????????????????????????????????????????? this.menuItem4});
??????????? //
??????????? // menuItem1
??????????? //
??????????? this.menuItem1.Index = 1;
??????????? this.menuItem1.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
????????????????????????????????????????????????????????????????????????????????????? this.menuItem2,
????????????????????????????????????????????????????????????????????????????????????? this.menuItem3});
??????????? this.menuItem1.Text = "編輯(&E)";
??????????? //
??????????? // menuItem2
??????????? //
??????????? this.menuItem2.Index = 0;
??????????? this.menuItem2.Text = "復(fù)制(&C)";
??????????? this.menuItem2.Click += new System.EventHandler(this.menuItem2_Click);
??????????? //
??????????? // menuItem3
??????????? //
??????????? this.menuItem3.Index = 1;
??????????? this.menuItem3.Text = "粘貼(&P)";
??????????? this.menuItem3.Click += new System.EventHandler(this.menuItem3_Click);
??????????? //
??????????? // menuItem4
??????????? //
??????????? this.menuItem4.Index = 2;
??????????? this.menuItem4.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
????????????????????????????????????????????????????????????????????????????????????? this.menuItem5,
????????????????????????????????????????????????????????????????????????????????????? this.menuItem6});
??????????? this.menuItem4.Text = "幫助(&H)";
??????????? //
??????????? // menuItem5
??????????? //
??????????? this.menuItem5.Index = 0;
??????????? this.menuItem5.Text = "幫助主題(&H)";
??????????? this.menuItem5.Click += new System.EventHandler(this.menuItem5_Click);
??????????? //
??????????? // menuItem6
??????????? //
??????????? this.menuItem6.Index = 1;
??????????? this.menuItem6.Text = "關(guān)于(&A)";
??????????? this.menuItem6.Click += new System.EventHandler(this.menuItem6_Click);
??????????? //
??????????? // menuItem8
??????????? //
??????????? this.menuItem8.Index = 0;
??????????? this.menuItem8.MenuItems.AddRange(new System.Windows.Forms.MenuItem[] {
????????????????????????????????????????????????????????????????????????????????????? this.menuItem9,
????????????????????????????????????????????????????????????????????????????????????? this.menuItem10});
??????????? this.menuItem8.Text = "文件(&F)";
??????????? //
??????????? // menuItem9
??????????? //
??????????? this.menuItem9.Index = 0;
??????????? this.menuItem9.Text = "打開windows計算器(&O)";
??????????? this.menuItem9.Click += new System.EventHandler(this.menuItem9_Click);
??????????? //
??????????? // menuItem10
??????????? //
??????????? this.menuItem10.Index = 1;
??????????? this.menuItem10.Text = "退出(&Q)";
??????????? this.menuItem10.Click += new System.EventHandler(this.menuItem10_Click);
??????????? //
??????????? // Form1
??????????? //
??????????? this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
??????????? this.ClientSize = new System.Drawing.Size(278, 239);
??????????? this.Controls.Add(this.groupBox1);
??????????? this.Controls.Add(this.txtShow);
??????????? this.FormBorderStyle = System.Windows.Forms.FormBorderStyle.Fixed3D;
??????????? this.Icon = ((System.Drawing.Icon)(resources.GetObject("$this.Icon")));
??????????? this.MaximizeBox = false;
??????????? this.Menu = this.mainMenu1;
??????????? this.Name = "Form1";
??????????? this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
??????????? this.Text = "計算器";
??????????? this.groupBox1.ResumeLayout(false);
??????????? this.ResumeLayout(false);

??????? }
??????? #endregion

??????? #region 各變量和常數(shù)的聲明
??????? public const int NULL = 0;????? // 定義操作碼
??????? public const int ADD = 1;???? //表示加
??????? public const int SUB = 2;???? //減
??????? public const int MUL = 3;???? //乘
??????? public const int DIV = 4;??? //除
??????? public const int SQR = 5;??? //求平方
??????? public const int SQRT = 6;?? //求平方根
??????? public const int NODOT? = 0;???? // 定義是否點擊了小數(shù)點,0 為沒點
??????? public const int HASDOT = 1;
??????? private double res = 0;???????? // 記錄結(jié)果數(shù)
??????? private double tmp = 0;???????? // 當(dāng)前輸入的操作數(shù)
??????? private int opt = NULL;???????? // 記錄操作碼
??????? private int dot = NODOT;??? // 記錄是否點擊了小數(shù)點,0為沒有點
??????? private int num = 0;??????? // 記錄輸入操作數(shù)的個數(shù)
??????? private int dotnum = 0;??????? // 記錄小數(shù)點部分的個數(shù)???????
??????? string strOper;??????????? //獲取操作符
??????? #endregion
??????? /// <summary>
??????? /// 應(yīng)用程序的主入口點。
??????? /// </summary>
??????? [STAThread]
??????? static void Main()
??????? {
??????????? Application.Run(new Form1());
??????? }

??????? /// <summary>
???????
??????? #region 獲取操作數(shù)事件
??????? //獲取操作數(shù)事件
???????
??????? private void btn_0_Click(object sender, System.EventArgs e)
??????? {
??????????? System.Windows.Forms.Button btnTmp;
??????????? double i;

??????????? btnTmp = sender as System.Windows.Forms.Button;???????????
??????????? if (btnTmp != null)
??????????? {
??????????????? if (dot == NODOT)
??????????????? {
??????????????????? // 沒有點擊小數(shù)點
??????????????????? i = double.Parse(btnTmp.Tag.ToString()); //取用戶自定義的控件關(guān)聯(lián)數(shù),并轉(zhuǎn)換成double型
??????????????????? tmp = tmp * 10 + i;
??????????????????? txtShow.Text = tmp.ToString();?? //將其放入文本顯示屏啊
??????????????? }
??????????????? else?? // 點擊了小數(shù)點
??????????????? {???????????????????
??????????????????? dotnum++;??? //記錄小數(shù)點部分的個數(shù)
?????????????????????????????????????????????????????? // 生成小數(shù)部分的新的數(shù)值
??????????????????? i = double.Parse(btnTmp.Tag.ToString()) / System.Math.Pow(10,dotnum);
??????????????????? tmp = tmp + i;? //將小數(shù)點后的值加到當(dāng)前操做數(shù)
??????????????????? txtShow.Text = tmp.ToString();
??????????????? }
??????????? }
??????? }
??????? #endregion

??????? #region 等于事件和等于運算方法
??????? //等于事件
??????? private void btn_equ_Click(object sender, System.EventArgs e)
??????? {
??????????? calc();
??????? }

??????? //等于運算方法
??????? private void calc()
??????? {
??????????? // 生成結(jié)果
??????????? if (num == 0 )??? //是否有操作數(shù),沒有就返回0
??????????? {
??????????????? res = 0;
??????????????? tmp = 0;
??????????????? txtShow.Text = res.ToString();
??????????????? return;
??????????? }

??????????? switch (opt)? //找到對應(yīng)的運算符進行計算
??????????? {
??????????????????? // 加法
??????????????? case ADD:
??????????????????? res = res + tmp;???????????????????
??????????????????? break;
??????????????????? // 減法
??????????????? case SUB:
??????????????????? res = res - tmp;???????????????????
??????????????????? break;
??????????????????? // 乘法
??????????????? case MUL:
??????????????????? res = res * tmp;???????????????????
??????????????????? break;
??????????????????? // 除法
??????????????? case DIV:
??????????????????? res = res / tmp;???????????????????
??????????????????? break;
??????????????????? // 平方
??????????????? case SQR:
??????????????????? res = tmp * tmp;???????????????????
??????????????????? break;
??????????????????? // 平方根
??????????????? case SQRT:
??????????????????? res = System.Math.Sqrt(tmp);???????????????????
??????????????????? break;
??????????????? default:
??????????????????? return;
??????????? }
??????????? txtShow.Text = res.ToString();?? //結(jié)果輸出到文本顯示屏
??????????? opt = NULL;? //運算符清空
??????????? tmp=0;???
??????????? dot = NODOT;
??????????????????? //res = 0;
??????????????????? //num = 0;
??????? }
??????? #endregion

??????? #region 獲取操作符運事件
??????? //獲取操作符運事件
??????? private void btn_Oper(object obj,EventArgs ea)
??????? {
??????????? Button tmp1=(Button)obj;
??????????? strOper=tmp1.Text;
??????????? switch (strOper)
??????????? {
??????????????? case "/":?????? //除法運算
??????????????????? if(opt!=NULL&&opt!=DIV)
??????????????????? {
??????????????????????? calc();
??????????????????? }
??????????????????? opt = DIV;
??????????????????? if (num != 0)? //判斷操作數(shù)的個數(shù),如果兩個就做二元運算
??????????????????? {
??????????????????????? if (tmp != 0)
??????????????????????????? res = res / tmp;
??????????????????? }
??????????????????? else
??????????????????????? res = tmp;
??????????????????? num++;?????????????????????
??????????????????? tmp = 0;
??????????????????? txtShow.Text = res.ToString();
??????????????????? dot = NODOT;
??????????????????? break;
??????????????? case "*":
??????????????????? // 乘法運算
??????????????????? if(opt!=NULL&&opt!=MUL)
??????????????????? {
??????????????????????? calc();
??????????????????? }

??????????????????? opt = MUL;
???????????????????
??????????????????? if (num!= 0 )???? //判斷操作數(shù)的個數(shù),如果兩個就做二元運算???
??????????????????? {
??????????????????????????? if(tmp!=0)
???????????????????????? res = res * tmp;
??????????????????? }
??????????????????? else
??????????????????????? res = tmp;
???????????????????
??????????????????? num++;?????????????????????????????????????
??????????????????? tmp = 0;
??????????????????? txtShow.Text = res.ToString();
??????????????????? dot = NODOT;
??????????????????? break;
??????????????? case "+":??????????? //加法運算
??????????????????? if(opt!=NULL&&opt!=ADD)
??????????????????? {
??????????????????????? calc();
??????????????????? }
??????????????????? opt = ADD;
??????????????????? if (num != 0)??? //判斷操作數(shù)的個數(shù),如果兩個就做二元運算
??????????????????????? res = res + tmp;
??????????????????? else
??????????????????????? res = tmp;
??????????????????? num++;???????????????????
??????????????????? tmp = 0;
??????????????????? txtShow.Text = res.ToString();
??????????????????? dot = NODOT;
??????????????????? break;
??????????????? case "-":??????? //減法運算
??????????????????? if(opt!=NULL&&opt!=SUB)
??????????????????? {
??????????????????????? calc();
??????????????????? }
??????????????????? /*if(opt==ADD)
??????????????????? {
??????????????????????? res=res+tmp;
??????????????????????? tmp=0;
??????????????????? }*/
??????????????????? opt = SUB;
??????????????????? if (num != 0)??? //判斷操作數(shù)的個數(shù),如果兩個就做二元運算
??????????????????????? res = res - tmp;
??????????????????? else
??????????????????????? res = tmp;
??????????????????? num++;????????????????????
??????????????????? tmp = 0;
??????????????????? txtShow.Text = res.ToString();
??????????????????? dot = NODOT;
??????????????????? break;
??????????????? case "sqrt":???? //平方根運算
??????????????????? if(opt!=NULL)
??????????????????? {
??????????????????????? calc();
??????????????????? }

??????????????????? //opt=SQRT;
??????????????????? if (tmp > 0)? //要求操作數(shù)大于0
??????????????????? {
??????????????????????? res = Math.Sqrt(tmp);
??????????????????????? //res=tmp;
??????????????????? }
??????????????????? else if(res>0)
??????????????????????? res= Math.Sqrt(res);
??????????????????????? txtShow.Text =res.ToString();
??????????????????? num++;???
??????????????????? tmp=0;
??????????????????? dot = NODOT;
??????????????????? break;
??????????????? case "sqr":
??????????????????? // 平方運算
??????????????????? if(opt!=NULL)
??????????????????? {
??????????????????????? calc();
??????????????????? }
??????????????????? //opt=SQR;
??????????????????? if (tmp != 0)
??????????????????? {
??????????????????????? res = tmp * tmp;
??????????????????????? //res=tmp;
??????????????????? }
??????????????????? else
??????????????????????? res=res*res;
???????????????????
??????????????????? txtShow.Text = res.ToString();
??????????????????? num++;???
??????????????????? tmp=0;
??????????????????? dot = NODOT;
??????????????????? break;
??????????????? case "1/x":? //倒數(shù)運算
??????????????????? if(opt!=NULL)
??????????????????? {
??????????????????????? calc();
??????????????????? }
??????????????????? if (tmp != 0)
??????????????????? {
??????????????????????? res = 1 / tmp;
??????????????????????? //res=tmp;
??????????????????? }
??????????????????? else???????????????????
??????????????????? res=1/res;
??????????????????? txtShow.Text = res.ToString();
??????????????????? tmp=0;
??????????????????? dot = NODOT;
??????????????????? break;
??????????????? case ".":
??????????????????????????? // 點擊了小數(shù)點
??????????????????? if(dot==HASDOT)
??????????????????????? return;
??????????????????? else
??????????????????? {
??????????????????????? dot = HASDOT;
??????????????????????? dotnum = 0;
??????????????????? }???????????????????
??????????????????? break;
??????????????? case "+/-":
??????????????????????????????? // 點擊了符號運算
??????????????????? if(tmp!=0)
??????????????????? {
??????????????????????? tmp = -tmp;
??????????????????????? txtShow.Text = tmp.ToString();
??????????????????? }
??????????????????? else
??????????????????? {
??????????????????????? res=-res;
??????????????????????? //res=tmp;
??????????????????????? txtShow.Text = res.ToString();???
??????????????????? }
??????????????????? dot = NODOT;
??????????????????? break;???
??????????????? case "CE":???? //清除運算
??????????????????? res = 0;???????? // 記錄結(jié)果數(shù)
??????????????????? tmp = 0;???????? // 當(dāng)前輸入的操作數(shù)
??????????????????? opt = NULL;???????? // 記錄操作碼
??????????????????? dot = NODOT;??? // 記錄是否點擊了小數(shù)點
??????????????????? num = 0;??????? // 記錄輸入操作數(shù)的個數(shù)
??????????????????? dotnum = 0;??????? // 記錄小數(shù)點部分的個數(shù)
??????????????????? txtShow.Text="";???????????????????
??????????????????? break;
??????????????? case "C":???????? //清除運算
??????????????????? res = 0;???????? // 記錄結(jié)果數(shù)
??????????????????? tmp = 0;???????? // 當(dāng)前輸入的操作數(shù)
??????????????????? opt = NULL;???????? // 記錄操作碼
??????????????????? dot = NODOT;??? // 記錄是否點擊了小數(shù)點
??????????????????? num = 0;??????? // 記錄輸入操作數(shù)的個數(shù)
??????????????????? dotnum = 0;??????? // 記錄小數(shù)點部分的個數(shù)
??????????????????? txtShow.Text="";
??????????????????? break;

??????????? }
??????? }

??????? #endregion

??????? #region???? 主菜單事件
??????? //打開關(guān)于主題---調(diào)用windows xp中計算器的幫助
??????? private void menuItem5_Click(object sender, System.EventArgs e)
??????? {
??????????? Help.ShowHelp(this,"C://WINDOWS//Help//calc.chm");???????
??????? }

???????

??????? //打開于我們
??????? private void menuItem6_Click(object sender, System.EventArgs e)
??????? {
??????????? Form2 fm=new Form2();
??????????? fm.Show();
???????????
??????? }

??????? //復(fù)制
??????? private void menuItem2_Click(object sender, System.EventArgs e)
??????? {
??????????? if(txtShow.SelectionLength>0)
??????????? {
??????????????? txtShow.Copy();
??????????? }
??????? }
??????? //
?????? //粘貼
??????? private void menuItem3_Click(object sender, System.EventArgs e)
??????? {
??????????? txtShow.Paste();
??????? }
??????
????????? //調(diào)用windows xp中的計算器
??????? private void menuItem9_Click(object sender, System.EventArgs e)
??????? {
???????????? Help.ShowHelp(this,"C://WINDOWS//system32//calc.exe");
??????? }
??????? //退出
??????? private void menuItem10_Click(object sender, System.EventArgs e)
??????? {
??????????? Application.Exit();
??????? }

??????? #endregion

???????
??? }
}

?

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