program.cs

这是一个用VC编写的简单计算器

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

namespace comput
{
    /// <summary>
    /// 这是一个计算器的简单实现。
    /// </summary>

    public class Form1 : System.Windows.Forms.Form
    {
        #region 控件声明

        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);
        }
        #endregion

        #region 各控件的属性的方法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.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("宋体", 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 = "计算机区";
            // 
            // c
            // 
            this.c.Font = new System.Drawing.Font("宋体", 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("宋体", 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("宋体", 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("宋体", 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("宋体", 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("宋体", 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("宋体", 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("宋体", 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("宋体", 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("宋体", 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("宋体", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));