form1.cs

一个模仿WINDOWS计数器的CODE,用C#编写,供学习用

//基本的计算器 
//恺环2005.07.26 
//Using C# 
//E-mail:[e-mail] 
using System; 
using System.Drawing; 
using System.Collections; 
using System.ComponentModel; 
using System.Windows.Forms; 

namespace wincalc 
{ 
	/// 
	/// Summary description for calcForm. 
	/// 
	public class calcForm : 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 bClr; 
		private System.Windows.Forms.Button bDot; 
		private System.Windows.Forms.Button bPlus; 
		private System.Windows.Forms.Button bSub; 
		private System.Windows.Forms.Button bMul; 
		private System.Windows.Forms.Button bDiv; 
		private System.Windows.Forms.Button bEqu; 
		private System.Windows.Forms.TextBox txtCalc; 

		//以下是要添加的代码 
		//定义变量 
		Double dblAcc; 
		Double dblSec; 
		bool blnClear,blnFrstOpen; 
		String strOper; 
		//以上是添加的代码 
		/// 
		/// Required designer variable. 
		/// 
		private System.ComponentModel.Container components = null; 

		public calcForm() 
		{ 
			// 
			// Required for Windows Form Designer support 
			// 
			InitializeComponent(); 

			// 
			// TODO: Add any constructor code after InitializeComponent call 
			// 

			//以下是要添加的代码 
			//初始化设量 
			dblAcc=0; 
			dblSec=0; 
			blnFrstOpen=true; 
			blnClear=true; 
			strOper=new string('=',1); 
			//以上是添加的代码 
		} 

		/// 
		/// Clean up any resources being used. 
		/// 
		protected override void Dispose( bool disposing ) 
		{ 
			if( disposing ) 
			{ 
				if(components != null) 
				{ 
					components.Dispose(); 
				} 
			} 
			base.Dispose( disposing ); 
		} 

		#region Windows Form Designer generated code 
		/// 
		/// Required method for Designer support - do not modify 
		/// the contents of this method with the code editor. 
		/// 
		private void InitializeComponent() 
		{ 
			this.bPlus = new System.Windows.Forms.Button(); 
			this.bMul = new System.Windows.Forms.Button(); 
			this.bDot = new System.Windows.Forms.Button(); 
			this.txtCalc = new System.Windows.Forms.TextBox(); 
			this.bClr = new System.Windows.Forms.Button(); 
			this.bDiv = new System.Windows.Forms.Button(); 
			this.bSub = new System.Windows.Forms.Button(); 
			this.button8 = new System.Windows.Forms.Button(); 
			this.button9 = new System.Windows.Forms.Button(); 
			this.bEqu = new System.Windows.Forms.Button(); 
			this.button10 = 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.button1 = new System.Windows.Forms.Button(); 
			this.button2 = new System.Windows.Forms.Button(); 
			this.button3 = new System.Windows.Forms.Button(); 
			this.SuspendLayout(); 
			// 
			// bPlus 
			// 
			this.bPlus.BackColor = System.Drawing.SystemColors.Control; 
			this.bPlus.ForeColor = System.Drawing.SystemColors.ControlText; 
			this.bPlus.Location = new System.Drawing.Point(208, 112); 
			this.bPlus.Name = "bPlus"; 
			this.bPlus.Size = new System.Drawing.Size(32, 80); 
			this.bPlus.TabIndex = 1; 
			this.bPlus.Text = "+"; 
			//以下是要添加的代码 
			bPlus.Click += new System.EventHandler(this.btn_Oper); 
			//以上是添加的代码 
			// 
			// bMul 
			// 
			this.bMul.Location = new System.Drawing.Point(160, 112); 
			this.bMul.Name = "bMul"; 
			this.bMul.Size = new System.Drawing.Size(32, 32); 
			this.bMul.TabIndex = 1; 
			this.bMul.Text = "*"; 
			//以下是要添加的代码 
			bMul.Click += new System.EventHandler(this.btn_Oper); 
			//以上是添加的代码 
			// 
			// bDot 
			// 
			this.bDot.ForeColor = System.Drawing.Color.Black; 
			this.bDot.Location = new System.Drawing.Point(112, 208); 
			this.bDot.Name = "bDot"; 
			this.bDot.Size = new System.Drawing.Size(32, 32); 
			this.bDot.TabIndex = 0; 
			this.bDot.Text = "."; 
			//以下是要添加的代码 
			bDot.Click += new System.EventHandler(this.btn_clk); 
			//以上是添加的代码 
			// 
			// txtCalc 
			// 
			this.txtCalc.Location = new System.Drawing.Point(16, 24); 
			this.txtCalc.Name = "txtCalc"; 
			this.txtCalc.ReadOnly = true; 
			this.txtCalc.RightToLeft = System.Windows.Forms.RightToLeft.Yes; 
			this.txtCalc.Size = new System.Drawing.Size(224, 21); 
			this.txtCalc.TabIndex = 2; 
			this.txtCalc.Text = ""; 
			// 
			// bClr 
			// 
			this.bClr.BackColor = System.Drawing.SystemColors.Control; 
			this.bClr.ForeColor = System.Drawing.SystemColors.ControlText; 
			this.bClr.Location = new System.Drawing.Point(208, 64); 
			this.bClr.Name = "bClr"; 
			this.bClr.Size = new System.Drawing.Size(32, 32); 
			this.bClr.TabIndex = 0; 
			this.bClr.Text = "AC"; 
			//以下是要添加的代码 
			bClr.Click += new System.EventHandler(this.btn_clr); 
			//以上是添加的代码 
			// 
			// bDiv 
			// 
			this.bDiv.Location = new System.Drawing.Point(160, 160); 
			this.bDiv.Name = "bDiv"; 
			this.bDiv.Size = new System.Drawing.Size(32, 32); 
			this.bDiv.TabIndex = 1; 
			this.bDiv.Text = "/"; 
			//以下是要添加的代码 
			bDiv.Click += new System.EventHandler(this.btn_Oper); 
			//以上是添加的代码 
			// 
			// bSub 
			// 
			this.bSub.Location = new System.Drawing.Point(160, 64); 
			this.bSub.Name = "bSub"; 
			this.bSub.Size = new System.Drawing.Size(32, 32); 
			this.bSub.TabIndex = 1; 
			this.bSub.Text = "-"; 
			//以下是要添加的代码 
			bSub.Click += new System.EventHandler(this.btn_Oper); 
			//以上是添加的代码 
			// 
			// button8 
			// 
			this.button8.Location = new System.Drawing.Point(16, 64); 
			this.button8.Name = "button8"; 
			this.button8.Size = new System.Drawing.Size(32, 32); 
			this.button8.TabIndex = 0; 
			this.button8.Text = "7"; 
			//以下是要添加的代码 
			button8.Click += new System.EventHandler(this.btn_clk); 
			//以上是添加的代码 
			// 
			// button9 
			// 
			this.button9.Location = new System.Drawing.Point(64, 64); 
			this.button9.Name = "button9"; 
			this.button9.Size = new System.Drawing.Size(32, 32); 
			this.button9.TabIndex = 0; 
			this.button9.Text = "8"; 
			//以下是要添加的代码 
			button9.Click += new System.EventHandler(this.btn_clk); 
			//以上是添加的代码 
			// 
			// bEqu 
			// 
			this.bEqu.BackColor = System.Drawing.SystemColors.Control; 
			this.bEqu.ForeColor = System.Drawing.SystemColors.ControlText; 
			this.bEqu.Location = new System.Drawing.Point(160, 208); 
			this.bEqu.Name = "bEqu"; 
			this.bEqu.Size = new System.Drawing.Size(80, 32); 
			this.bEqu.TabIndex = 1; 
			this.bEqu.Text = "="; 
			//以下是要添加的代码 
			bEqu.Click += new System.EventHandler(this.btn_equ); 
			//以上是添加的代码 
			// 
			// button10 
			// 
			this.button10.Location = new System.Drawing.Point(112, 64); 
			this.button10.Name = "button10"; 
			this.button10.Size = new System.Drawing.Size(32, 32); 
			this.button10.TabIndex = 0; 
			this.button10.Text = "9"; 
			//以下是要添加的代码 
			button10.Click += new System.EventHandler(this.btn_clk); 
			//以上是添加的代码 
			// 
			// button4 
			// 
			this.button4.Location = new System.Drawing.Point(112, 160); 
			this.button4.Name = "button4"; 
			this.button4.Size = new System.Drawing.Size(32, 32); 
			this.button4.TabIndex = 0; 
			this.button4.Text = "3"; 
			//以下是要添加的代码 
			button4.Click += new System.EventHandler(this.btn_clk); 
			//以上是添加的代码 
			// 
			// button5 
			// 
			this.button5.Location = new System.Drawing.Point(16, 112); 
			this.button5.Name = "button5"; 
			this.button5.Size = new System.Drawing.Size(32, 32); 
			this.button5.TabIndex = 0; 
			this.button5.Text = "4"; 
			//以下是要添加的代码 
			button5.Click += new System.EventHandler(this.btn_clk); 
			//以上是添加的代码 
			// 
			// button6 
			// 
			this.button6.Location = new System.Drawing.Point(64, 112); 
			this.button6.Name = "button6"; 
			this.button6.Size = new System.Drawing.Size(32, 32); 
			this.button6.TabIndex = 0; 
			this.button6.Text = "5"; 
			//以下是要添加的代码 
			button6.Click += new System.EventHandler(this.btn_clk); 
			//以上是添加的代码 
			// 
			// button7 
			// 
			this.button7.Location = new System.Drawing.Point(112, 112); 
			this.button7.Name = "button7"; 
			this.button7.Size = new System.Drawing.Size(32, 32); 
			this.button7.TabIndex = 0; 
			this.button7.Text = "6"; 
			//以下是要添加的代码 
			button7.Click += new System.EventHandler(this.btn_clk); 
			//以上是添加的代码 
			// 
			// button1 
			// 
			this.button1.BackColor = System.Drawing.SystemColors.Control; 
			this.button1.ForeColor = System.Drawing.Color.Black; 
			this.button1.Location = new System.Drawing.Point(16, 208); 
			this.button1.Name = "button1"; 
			this.button1.Size = new System.Drawing.Size(80, 32); 
			this.button1.TabIndex = 0; 
			this.button1.Text = "0"; 
			//以下是要添加的代码 
			button1.Click += new System.EventHandler(this.btn_clk); 
			//以上是添加的代码 
			// 
			// button2 
			// 
			this.button2.Location = new System.Drawing.Point(16, 160); 
			this.button2.Name = "button2"; 
			this.button2.Size = new System.Drawing.Size(32, 32); 
			this.button2.TabIndex = 0; 
			this.button2.Text = "1"; 
			//以下是要添加的代码 
			button2.Click += new System.EventHandler(this.btn_clk); 
			//以上是添加的代码 
			// 
			// button3 
			// 
			this.button3.Location = new System.Drawing.Point(64, 160); 
			this.button3.Name = "button3"; 
			this.button3.Size = new System.Drawing.Size(32, 32); 
			this.button3.TabIndex = 0; 
			this.button3.Text = "2"; 
			//以下是要添加的代码 
			button3.Click += new System.EventHandler(this.btn_clk); 
			//以上是添加的代码 
			// 
			// calcForm 
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14); 
			this.ClientSize = new System.Drawing.Size(256, 261); 
			this.Controls.AddRange(new System.Windows.Forms.Control[] { 
																		  this.txtCalc, 
																		  this.bEqu, 
																		  this.bDiv, 
																		  this.bMul, 
																		  this.bSub, 
																		  this.bPlus, 
																		  this.bDot, 
																		  this.bClr, 
																		  this.button10, 
																		  this.button9, 
																		  this.button8, 
																		  this.button7, 
																		  this.button6, 
																		  this.button5, 
																		  this.button4, 
																		  this.button3, 
																		  this.button2, 
																		  this.button1}); 
			this.Name = "calcForm"; 
			this.Text = "计算器"; 
			this.ResumeLayout(false); 

		} 
		#endregion 

		//以下是要添加的代码 
		//小数点的操作 
		private void btn_clk(object obj,EventArgs ea)
		{ 
			if(blnClear) 
				txtCalc.Text=""; 
			Button b3=(Button)obj; 
			txtCalc.Text+=b3.Text; 
			if(txtCalc.Text==".") 
				txtCalc.Text="0."; 
			dblSec=Convert.ToDouble(txtCalc.Text); 
			blnClear=false; 
		} 

		//程序开始点 
		private static void Main()
		{ 
			Application.Run(new calcForm()); 
		} 

		private void btn_Oper(object obj,EventArgs ea)
		{ 
			Button tmp=(Button)obj; 
			strOper=tmp.Text; 
			if(blnFrstOpen) 
				dblAcc=dblSec; 
			else 
				calc(); 
			blnFrstOpen=false; 
			blnClear=true; 
		} 

		//等号运算 
		private void btn_equ(object obj,EventArgs ea)
		{ 
			
			calc(); 
		} 

		//所有运算操作 
		private void calc()
		{ 
			switch(strOper)
			{ 
				case "+": 
					dblAcc+=dblSec; //加号运算 
					break; 
				case "-": 
					dblAcc-=dblSec; //减号运算 
					break; 
				case "*": 
					dblAcc*=dblSec; //乘号运算 
					break; 
				case "/": 
					dblAcc/=dblSec; //除号运算 
					break; 
			} 
			strOper="="; //等号运算 
			blnFrstOpen=true; 
			txtCalc.Text=Convert.ToString(dblAcc);//将运算结果转换成字符类型,并输出 
			dblSec=dblAcc;//将运算数A的值放入运算数B中,以便后面运算 
		} 

		//清除按钮 
		private void btn_clr(object obj,EventArgs ea)
		{ 
			clear(); 
		} 

		//清除按钮的操作 
		private void clear()
		{ 
			dblAcc=0; 
			dblSec=0; 
			blnFrstOpen=true; 
			txtCalc.Text=""; 
			txtCalc.Focus();//设置焦点为txtCalc 
		} 
		//以上是添加的代码 
	} 

}