?? form1.cs
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using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
namespace calculator
{
/// <summary>
/// Form1 的摘要說明。
/// </summary>
public class Form1 : System.Windows.Forms.Form
{
private System.Windows.Forms.Button button1;
private System.Windows.Forms.Button button2;
private System.Windows.Forms.Button button3;
private System.Windows.Forms.Button button4;
private System.Windows.Forms.Button button5;
private System.Windows.Forms.Button button6;
private System.Windows.Forms.Button button7;
private System.Windows.Forms.Button button8;
private System.Windows.Forms.Button button9;
private System.Windows.Forms.Button button10;
private System.Windows.Forms.Button button11;
private System.Windows.Forms.Button button12;
private System.Windows.Forms.Button button13;
private System.Windows.Forms.Button button14;
private System.Windows.Forms.Button button15;
private System.Windows.Forms.Button button16;
private System.Windows.Forms.Button button17;
/// <summary>
/// 必需的設計器變量。
/// </summary>
private System.ComponentModel.Container components = null;
private System.Windows.Forms.TextBox Screen;
public string Number1 = "";
public string Number2 = "";
public bool IsReal = false;
public bool Op_Add = false;
public bool Op_Minus = false;
public bool Op_Mul = false;
public bool Op_Div = false;
public int SelectWays = 0; //==========
public int NextInput = 0;
public void TypeInNumber( string KeyType ) //0～9鍵值，小數點
{
if( SelectWays == 12 || SelectWays == 20 )
{
SelectWays = 0;
Number1 = "";
Number2 = "";
Screen.Text = "";
NextInput = 0;
}
if( SelectWays == 0 && NextInput == 0 )
{
Screen.Text = "";
NextInput = -1;
}
else if( SelectWays == 10 && NextInput == 1 )
{
Screen.Text = "";
SelectWays = 100;
NextInput = 2;
}
if( Screen.Text.Length < 15 ) //限制鍵入數字的長度為15位以內
{
Screen.Text += KeyType;
}
if( ( SelectWays == 10 || SelectWays == 100 ) && NextInput == 2 )
{
Number2 = Screen.Text;
}
}
public void ShowResult() // “=”顯示結果
{
if( SelectWays == 100 || SelectWays == 11 )
{
if( Op_Div == true )
{
if( Number2 != "0" )
{
Screen.Text = Convert.ToString( Convert.ToDouble( Number1 ) / Convert.ToDouble( Number2 ) );
}
else
{
Clear();
MessageBox.Show("0 cannot be divided!");
}
}
else if( Op_Mul == true )
{
Screen.Text = Convert.ToString( Convert.ToDouble( Number1 ) * Convert.ToDouble( Number2 ) );
}
else if( Op_Minus == true )
{
Screen.Text = Convert.ToString( Convert.ToDouble( Number1 ) - Convert.ToDouble( Number2 ) );
}
else if( Op_Add == true )
{
Screen.Text = Convert.ToString( Convert.ToDouble( Number1 ) + Convert.ToDouble( Number2 ) );
}
Number1 = Screen.Text;
if( SelectWays == 100 )
{
SelectWays = 12;
}
else if( SelectWays == 11 )
{
SelectWays = 10;
NextInput = 1;
}
}
else if( SelectWays == 10 )
{
SelectWays = 20;
Number1 = Screen.Text;
if( Op_Div == true )
{
Screen.Text = "1";
}
else if( Op_Mul == true )
{
Screen.Text = Convert.ToString( Convert.ToDouble( Screen.Text ) * Convert.ToDouble( Number1 ) );
}
else if( Op_Minus == true )
{
Screen.Text = Convert.ToString( Convert.ToDouble( Screen.Text ) - Convert.ToDouble( Number1 ) );
}
else if( Op_Add == true )
{
Screen.Text = Convert.ToString( Convert.ToDouble( Screen.Text ) + Convert.ToDouble( Number1 ) );
}
}
else if( SelectWays == 20 )
{
if( Op_Div == true )
{
Screen.Text = "1";
}
else if( Op_Mul == true )
{
Screen.Text = Convert.ToString( Convert.ToDouble( Screen.Text ) * Convert.ToDouble( Number1 ) );
}
else if( Op_Minus == true )
{
Screen.Text = Convert.ToString( Convert.ToDouble( Screen.Text ) - Convert.ToDouble( Number1 ) );
}
else if( Op_Add == true )
{
Screen.Text = Convert.ToString( Convert.ToDouble( Screen.Text ) + Convert.ToDouble( Number1 ) );
}
}
Number2 = "";
// MessageBox.Show( Convert.ToString(SelectWays) );
}
public void Operate( string op ) //四則運算
{
if( SelectWays == 0 || SelectWays == 12 || SelectWays == 20 )
{
SelectWays = 10;
Number1 = Screen.Text;
NextInput = 1;
}
else if( SelectWays == 100 )
{
SelectWays = 11;
ShowResult();
}
Op_Add = false;
Op_Minus = false;
Op_Mul = false;
Op_Div = false;
switch( op )
{
case "div":
Op_Div = true;
break;
case "mul":
Op_Mul = true;
break;
case "minus":
Op_Minus = true;
break;
case "add":
Op_Add = true;
break;
}
}
public void Clear() //清空
{
Screen.Text = "0";
Number1 = "";
Number2 = "";
IsReal = false;
Op_Add = false;
Op_Minus = false;
Op_Mul = false;
Op_Div = false;
SelectWays = 0;
NextInput = 0;
}
public Form1()
{
//
// Windows 窗體設計器支持所必需的
//
InitializeComponent();
//
// TODO: 在 InitializeComponent 調用后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 );
}
#region Windows 窗體設計器生成的代碼
/// <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()
{
this.Screen = new System.Windows.Forms.TextBox();
this.button1 = new System.Windows.Forms.Button();
this.button2 = new System.Windows.Forms.Button();
this.button3 = new System.Windows.Forms.Button();
this.button4 = new System.Windows.Forms.Button();
this.button5 = new System.Windows.Forms.Button();
this.button6 = new System.Windows.Forms.Button();
this.button7 = new System.Windows.Forms.Button();
this.button8 = new System.Windows.Forms.Button();
this.button9 = new System.Windows.Forms.Button();
this.button10 = new System.Windows.Forms.Button();
this.button11 = new System.Windows.Forms.Button();
this.button12 = new System.Windows.Forms.Button();
this.button13 = new System.Windows.Forms.Button();
this.button14 = new System.Windows.Forms.Button();
this.button15 = new System.Windows.Forms.Button();
this.button16 = new System.Windows.Forms.Button();
this.button17 = new System.Windows.Forms.Button();
this.SuspendLayout();
//
// Screen
//
this.Screen.BackColor = System.Drawing.SystemColors.ControlLightLight;
this.Screen.Enabled = false;
this.Screen.Font = new System.Drawing.Font("宋體", 14.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
this.Screen.ForeColor = System.Drawing.SystemColors.WindowFrame;
this.Screen.Location = new System.Drawing.Point(8, 8);
this.Screen.MaxLength = 0;
this.Screen.Name = "Screen";
this.Screen.Size = new System.Drawing.Size(208, 29);
this.Screen.TabIndex = 0;
this.Screen.TabStop = false;
this.Screen.Text = "0";
this.Screen.TextAlign = System.Windows.Forms.HorizontalAlignment.Right;
this.Screen.WordWrap = false;
//
// button1
//
this.button1.Font = new System.Drawing.Font("宋體", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
this.button1.ForeColor = System.Drawing.SystemColors.ControlLightLight;
this.button1.Location = new System.Drawing.Point(8, 48);
this.button1.Name = "button1";
this.button1.Size = new System.Drawing.Size(40, 32);
this.button1.TabIndex = 6;
this.button1.Text = "7";
this.button1.Click += new System.EventHandler(this.button1_Click);
//
// button2
//
this.button2.Font = new System.Drawing.Font("宋體", 10.5F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((System.Byte)(134)));
this.button2.ForeColor = System.Drawing.SystemColors.ControlLightLight;
this.button2.Location = new System.Drawing.Point(64, 48);
this.button2.Name = "button2";
this.button2.Size = new System.Drawing.Size(40, 32);
this.button2.TabIndex = 7;
this.button2.Text = "8";
this.button2.Click += new System.EventHandler(this.button2_Click);
//
// button3
//
this.button3.ForeColor = System.Drawing.SystemColors.HighlightText;
this.button3.Location = new System.Drawing.Point(120, 48);
this.button3.Name = "button3";
this.button3.Size = new System.Drawing.Size(40, 32);
this.button3.TabIndex = 8;
this.button3.Text = "9";
this.button3.Click += new System.EventHandler(this.button3_Click);
//
// button4
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