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 程式師世界 >> 編程語言 >> 更多編程語言 >> 更多關於編程 >> C#編寫的windows計算器的實例代碼

C#編寫的windows計算器的實例代碼

編輯:更多關於編程
    這篇文章介紹了C#編寫windows計算器的代碼,有需要的朋友可以參考一下   復制代碼 代碼如下:


    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。
        /// </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>
            /// 必需的設計器變量。
            /// </summary>
            private System.ComponentModel.Container components = null;
            public Form1()
            {
                //
                // Windows 窗體設計器支持所必需的
                //
                InitializeComponent();
                //
                // TODO: 在 InitializeComponent 調用後添加任何構造函數代碼
                //
            }
            /// <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";
                //
                // 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 = "關於(&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點,0 為沒點
            public const int HASDOT = 1;
            private double res = 0;         // 記錄結果數
            private double tmp = 0;         // 當前輸入的操作數
            private int opt = NULL;         // 記錄操作碼
            private int dot = NODOT;    // 記錄是否點擊了小數點,0為沒有點
            private int num = 0;        // 記錄輸入操作數的個數
            private int dotnum = 0;        // 記錄小數點部分的個數       
            string strOper;            //獲取操作符
            #endregion
            /// <summary>
            /// 應用程序的主入口點。
            /// </summary>
            [STAThread]
            static void Main()
            {
                Application.Run(new Form1());
            }
            /// <summary>
            #region 獲取操作數事件
            //獲取操作數事件
            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)
                    {
                        // 沒有點擊小數點
                        i = double.Parse(btnTmp.Tag.ToString()); //取用戶自定義的控件關聯數,並轉換成double型
                        tmp = tmp * 10 + i;
                        txtShow.Text = tmp.ToString();   //將其放入文本顯示屏啊
                    }
                    else   // 點擊了小數點
                    {                   
                        dotnum++;    //記錄小數點部分的個數
                                                           // 生成小數部分的新的數值
                        i = double.Parse(btnTmp.Tag.ToString()) / System.Math.Pow(10,dotnum);
                        tmp = tmp + i;  //將小數點後的值加到當前操做數
                        txtShow.Text = tmp.ToString();
                    }
                }
            }
            #endregion
            #region 等於事件和等於運算方法
            //等於事件
            private void btn_equ_Click(object sender, System.EventArgs e)
            {
                calc();
            }
            //等於運算方法
            private void calc()
            {
                // 生成結果
                if (num == 0 )    //是否有操作數,沒有就返回0
                {
                    res = 0;
                    tmp = 0;
                    txtShow.Text = res.ToString();
                    return;
                }
                switch (opt)  //找到對應的運算符進行計算
                {
                        // 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)  //判斷操作數的個數,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 )     //判斷操作數的個數,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)    //判斷操作數的個數,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)    //判斷操作數的個數,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)  //要求操作數大於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;         // 記錄結果數
                        tmp = 0;         // 當前輸入的操作數
                        opt = NULL;         // 記錄操作碼
                        dot = NODOT;    // 記錄是否點擊了小數點
                        num = 0;        // 記錄輸入操作數的個數
                        dotnum = 0;        // 記錄小數點部分的個數
                        txtShow.Text="";                   
                        break;
                    case "C":         //清除運算
                        res = 0;         // 記錄結果數
                        tmp = 0;         // 當前輸入的操作數
                        opt = NULL;         // 記錄操作碼
                        dot = NODOT;    // 記錄是否點擊了小數點
                        num = 0;        // 記錄輸入操作數的個數
                        dotnum = 0;        // 記錄小數點部分的個數
                        txtShow.Text="";
                        break;
                }
            }
            #endregion
            #region     主菜單事件
            //打開關於主題---調用windows xp中計算器的幫助
            private void menuItem5_Click(object sender, System.EventArgs e)
            {
                Help.ShowHelp(this,"C:WINDOWSHelpcalc.chm");       
            }
            //打開於我們
            private void menuItem6_Click(object sender, System.EventArgs e)
            {
                Form2 fm=new Form2();
                fm.Show();
            }
            //復制
            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();
            }
              //調用windows xp中的計算器
            private void menuItem9_Click(object sender, System.EventArgs e)
            {
                 Help.ShowHelp(this,"C:WINDOWSsystem32calc.exe");
            }
            //退出
            private void menuItem10_Click(object sender, System.EventArgs e)
            {
                Application.Exit();
            }
            #endregion
        }
    }

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