form1.cs

一个计算器

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

namespace 计算器
{
	/// <summary>
	/// Form1 的摘要说明。
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		
		int a,b,i=1;
		string cl;
		private System.Windows.Forms.TextBox textBox1;
		private System.Windows.Forms.TextBox textBox2;
		private System.Windows.Forms.TextBox textBox3;
		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;
		private System.Windows.Forms.TextBox textBox4;
		private System.Windows.Forms.Button button18;
		private System.Windows.Forms.Timer timer1;
		private System.ComponentModel.IContainer components;

		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 );
		}

		#region Windows 窗体设计器生成的代码
		/// <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()
		{
			this.components = new System.ComponentModel.Container();
			this.textBox1 = new System.Windows.Forms.TextBox();
			this.textBox2 = new System.Windows.Forms.TextBox();
			this.textBox3 = 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.textBox4 = new System.Windows.Forms.TextBox();
			this.button18 = new System.Windows.Forms.Button();
			this.timer1 = new System.Windows.Forms.Timer(this.components);
			this.SuspendLayout();
			// 
			// textBox1
			// 
			this.textBox1.Location = new System.Drawing.Point(88, 16);
			this.textBox1.Name = "textBox1";
			this.textBox1.ReadOnly = true;
			this.textBox1.RightToLeft = System.Windows.Forms.RightToLeft.Yes;
			this.textBox1.Size = new System.Drawing.Size(184, 21);
			this.textBox1.TabIndex = 0;
			this.textBox1.Text = "";
			// 
			// textBox2
			// 
			this.textBox2.Location = new System.Drawing.Point(16, 64);
			this.textBox2.Name = "textBox2";
			this.textBox2.ReadOnly = true;
			this.textBox2.RightToLeft = System.Windows.Forms.RightToLeft.Yes;
			this.textBox2.Size = new System.Drawing.Size(48, 21);
			this.textBox2.TabIndex = 1;
			this.textBox2.Text = "";
			// 
			// textBox3
			// 
			this.textBox3.Location = new System.Drawing.Point(88, 64);
			this.textBox3.Name = "textBox3";
			this.textBox3.ReadOnly = true;
			this.textBox3.RightToLeft = System.Windows.Forms.RightToLeft.Yes;
			this.textBox3.Size = new System.Drawing.Size(184, 21);
			this.textBox3.TabIndex = 2;
			this.textBox3.Text = "";
			// 
			// button1
			// 
			this.button1.Location = new System.Drawing.Point(16, 160);
			this.button1.Name = "button1";
			this.button1.Size = new System.Drawing.Size(56, 23);
			this.button1.TabIndex = 3;
			this.button1.Text = "1";
			this.button1.Click += new System.EventHandler(this.button1_Click);
			// 
			// button2
			// 
			this.button2.Location = new System.Drawing.Point(72, 160);
			this.button2.Name = "button2";
			this.button2.Size = new System.Drawing.Size(56, 23);
			this.button2.TabIndex = 4;
			this.button2.Text = "2";
			this.button2.Click += new System.EventHandler(this.button2_Click);
			// 
			// button3
			// 
			this.button3.Location = new System.Drawing.Point(128, 160);
			this.button3.Name = "button3";
			this.button3.Size = new System.Drawing.Size(56, 23);
			this.button3.TabIndex = 5;
			this.button3.Text = "3";
			this.button3.Click += new System.EventHandler(this.button3_Click);
			// 
			// button4
			// 
			this.button4.Location = new System.Drawing.Point(16, 184);
			this.button4.Name = "button4";
			this.button4.Size = new System.Drawing.Size(56, 23);
			this.button4.TabIndex = 6;
			this.button4.Text = "4";
			this.button4.Click += new System.EventHandler(this.button4_Click);
			// 
			// button5
			// 
			this.button5.Location = new System.Drawing.Point(72, 184);
			this.button5.Name = "button5";
			this.button5.Size = new System.Drawing.Size(56, 23);
			this.button5.TabIndex = 7;
			this.button5.Text = "5";
			this.button5.Click += new System.EventHandler(this.button5_Click);
			// 
			// button6
			// 
			this.button6.Location = new System.Drawing.Point(128, 184);
			this.button6.Name = "button6";
			this.button6.Size = new System.Drawing.Size(56, 23);
			this.button6.TabIndex = 8;
			this.button6.Text = "6";
			this.button6.Click += new System.EventHandler(this.button6_Click);
			// 
			// button7
			// 
			this.button7.Location = new System.Drawing.Point(16, 208);
			this.button7.Name = "button7";
			this.button7.Size = new System.Drawing.Size(56, 23);
			this.button7.TabIndex = 9;
			this.button7.Text = "7";
			this.button7.Click += new System.EventHandler(this.button7_Click);
			// 
			// button8
			// 
			this.button8.Location = new System.Drawing.Point(72, 208);
			this.button8.Name = "button8";
			this.button8.Size = new System.Drawing.Size(56, 23);
			this.button8.TabIndex = 10;
			this.button8.Text = "8";
			this.button8.Click += new System.EventHandler(this.button8_Click);
			// 
			// button9
			// 
			this.button9.Location = new System.Drawing.Point(128, 208);
			this.button9.Name = "button9";
			this.button9.Size = new System.Drawing.Size(56, 23);
			this.button9.TabIndex = 11;
			this.button9.Text = "9";
			this.button9.Click += new System.EventHandler(this.button9_Click);
			// 
			// button10
			// 
			this.button10.Location = new System.Drawing.Point(16, 232);
			this.button10.Name = "button10";
			this.button10.Size = new System.Drawing.Size(56, 23);
			this.button10.TabIndex = 12;
			this.button10.Text = "0";
			this.button10.Click += new System.EventHandler(this.button10_Click);
			// 
			// button11
			// 
			this.button11.Location = new System.Drawing.Point(72, 232);
			this.button11.Name = "button11";
			this.button11.Size = new System.Drawing.Size(112, 23);
			this.button11.TabIndex = 13;
			this.button11.Text = "ON/OFF";
			this.button11.Click += new System.EventHandler(this.button11_Click);
			// 
			// button12
			// 
			this.button12.Location = new System.Drawing.Point(200, 136);
			this.button12.Name = "button12";
			this.button12.Size = new System.Drawing.Size(64, 23);
			this.button12.TabIndex = 14;
			this.button12.Text = "＋";
			this.button12.Click += new System.EventHandler(this.button12_Click);
			// 
			// button13
			// 
			this.button13.Location = new System.Drawing.Point(200, 160);
			this.button13.Name = "button13";
			this.button13.Size = new System.Drawing.Size(64, 23);
			this.button13.TabIndex = 15;
			this.button13.Text = "－";
			this.button13.Click += new System.EventHandler(this.button13_Click);
			// 
			// button14
			// 
			this.button14.Location = new System.Drawing.Point(200, 184);
			this.button14.Name = "button14";
			this.button14.Size = new System.Drawing.Size(64, 23);
			this.button14.TabIndex = 16;
			this.button14.Text = "×";
			this.button14.Click += new System.EventHandler(this.button14_Click);
			// 
			// button15
			// 
			this.button15.Location = new System.Drawing.Point(200, 208);
			this.button15.Name = "button15";
			this.button15.Size = new System.Drawing.Size(64, 23);
			this.button15.TabIndex = 17;
			this.button15.Text = "÷";
			this.button15.Click += new System.EventHandler(this.button15_Click);
			// 
			// button16
			// 
			this.button16.Location = new System.Drawing.Point(200, 232);
			this.button16.Name = "button16";
			this.button16.Size = new System.Drawing.Size(64, 23);
			this.button16.TabIndex = 18;
			this.button16.Text = "＝";
			this.button16.Click += new System.EventHandler(this.button16_Click);
			// 
			// button17
			// 
			this.button17.Location = new System.Drawing.Point(16, 136);
			this.button17.Name = "button17";
			this.button17.Size = new System.Drawing.Size(88, 23);
			this.button17.TabIndex = 19;
			this.button17.Text = "clear";
			this.button17.Click += new System.EventHandler(this.button17_Click);
			// 
			// textBox4
			// 
			this.textBox4.Location = new System.Drawing.Point(88, 104);
			this.textBox4.Name = "textBox4";
			this.textBox4.ReadOnly = true;
			this.textBox4.Size = new System.Drawing.Size(176, 21);
			this.textBox4.TabIndex = 20;
			this.textBox4.Text = "";
			this.textBox4.TextChanged += new System.EventHandler(this.textBox4_TextChanged);
			// 
			// button18
			// 
			this.button18.Location = new System.Drawing.Point(104, 136);
			this.button18.Name = "button18";
			this.button18.Size = new System.Drawing.Size(80, 23);
			this.button18.TabIndex = 21;
			this.button18.Text = "Time";
			this.button18.Click += new System.EventHandler(this.button18_Click);
			// 
			// timer1
			// 
			this.timer1.Interval = 10;
			this.timer1.Tick += new System.EventHandler(this.timer1_Tick_1);
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(292, 286);
			this.Controls.Add(this.button18);
			this.Controls.Add(this.textBox4);
			this.Controls.Add(this.button17);
			this.Controls.Add(this.button16);
			this.Controls.Add(this.button15);
			this.Controls.Add(this.button14);
			this.Controls.Add(this.button13);
			this.Controls.Add(this.button12);
			this.Controls.Add(this.button11);
			this.Controls.Add(this.button10);
			this.Controls.Add(this.button9);
			this.Controls.Add(this.button8);
			this.Controls.Add(this.button7);
			this.Controls.Add(this.button6);
			this.Controls.Add(this.button5);
			this.Controls.Add(this.button4);
			this.Controls.Add(this.button3);
			this.Controls.Add(this.button2);
			this.Controls.Add(this.button1);
			this.Controls.Add(this.textBox3);
			this.Controls.Add(this.textBox2);
			this.Controls.Add(this.textBox1);
			this.Name = "Form1";
			this.Text = "Form1";
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// 应用程序的主入口点。
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}

		private void button1_Click(object sender, System.EventArgs e)
		{
				if((this.textBox2.Text=="")&&(this.textBox1.Text!=""))
			 
		 {
				 if(this.textBox1.Text=="0")this.textBox1.Text="1";
		  else  this.textBox1.Text=this.textBox1.Text+"1";}
			if(this.textBox2.Text!="") this.textBox3.Text=this.textBox3.Text+"1";
		
		}

		private void button2_Click(object sender, System.EventArgs e)
		{
			if((this.textBox2.Text=="")&&(this.textBox1.Text!=""))
			{