c# 简单计算器源代码

c#编写的简单计算器代码，源代码是我在网上下载的，希望对同学们学习C#有好的帮助

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;

namespace Ex4._1_Calculator
{
    public partial class Form1 : Form
    {
        double num1=1num2num_addnum_multiply=1num_mulus=0num_divade=0result;
        string Operater;
        bool b = falseb1 = true;
        public Form1（）
        {
            InitializeComponent（）;
        }
        public void NumClick（string myNumber）
        {
            b1 = true;
            if （textBox1.Text == “0“ || b == true）
            {
                textBox1.Text = ““;
                textBox1.Text = textBox1.Text + myNumber;
            }
            else
            {
                textBox1.Text = textBox1.Text + myNumber;
            }
            b = false;
        }
        private void Form1_Load（object sender EventArgs e）
        {
            textBox1.Text = “0“;
        }

        private void buttonZero_Click（object sender EventArgs e）
        {
            NumClick（“0“）;
        }

        private void buttonOne_Click（object sender EventArgs e）
        {
            NumClick（“1“）;
        }

        private void buttonTwo_Click（object sender EventArgs e）
        {
            NumClick（“2“）;
        }

        private void buttonThree_Click（object sender EventArgs e）
        {
            NumClick（“3“）;
        }

        private void buttonFour_Click（object sender EventArgs e）
        {
            NumClick（“4“）;
        }

        private void buttonFive_Click（object sender EventArgs e）
        {
            NumClick（“5“）;
        }

        private void buttonSix_Click（object sender EventArgs e）
        {
            NumClick（“6“）;
        }

        private void buttonSeven_Click（object sender EventArgs e）
        {
            NumClick（“7“）;
        }

        private void buttonEight_Click（object sender EventArgs e）
        {
            NumClick（“8“）;
        }

        private void buttonNine_Click（object sender EventArgs e）
        {
            NumClick（“9“）;
        }

        private void buttonDot_Click（object sender EventArgs e）
        {
            if （textBox1.Text.Contains（“.“）==false）
            {
                textBox1.Text = textBox1.Text + “.“;
            }
        }

        private void buttonC_Click（object sender EventArgs e）
        {
            textBox1.Text = “0“;
            num1 = 0;
            num_add = 0;
            num2 = 0;
            num_divade = 0;
            num_multiply = 0;
            num_mulus = 0;
        }

        private void buttonDivade_Click（object sender EventArgs e）
        {
            b = true; 
            if （b1 == true）
            {
                num1 = double.Parse（textBox1.Text）;
                if （num_divade != 0）
                {
                    num

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件        890  2013-05-04 15:15  Ex4.1 Calculator\Ex4.1 Calculator.sln

    I.A..H.      8192  2013-05-14 22:59  Ex4.1 Calculator\Ex4.1 Calculator.suo

     文件       3692  2013-05-04 15:45  Ex4.1 Calculator\Ex4.1 Calculator\Ex4.1 Calculator.csproj

     文件       5926  2013-05-09 17:45  Ex4.1 Calculator\Ex4.1 Calculator\Form1.cs

     文件      16365  2013-05-09 17:45  Ex4.1 Calculator\Ex4.1 Calculator\Form1.Designer.cs

     文件       5817  2013-05-09 17:45  Ex4.1 Calculator\Ex4.1 Calculator\Form1.resx

     文件        498  2013-05-04 15:15  Ex4.1 Calculator\Ex4.1 Calculator\Program.cs

     文件      36352  2013-05-13 19:56  Ex4.1 Calculator\Ex4.1 Calculator\bin\Debug\Ex4.1 Calculator.pdb

     文件      11600  2013-05-13 19:56  Ex4.1 Calculator\Ex4.1 Calculator\bin\Debug\Ex4.1 Calculator.vshost.exe

     文件        490  2010-03-17 22:39  Ex4.1 Calculator\Ex4.1 Calculator\bin\Debug\Ex4.1 Calculator.vshost.exe.manifest

     文件      15360  2013-05-13 19:56  Ex4.1 Calculator\Ex4.1 Calculator\bin\Debug\Ex4.1 Calculator.exe

     文件      28160  2013-05-09 17:41  Ex4.1 Calculator\Ex4.1 Calculator\bin\Release\Ex4.1 Calculator.pdb

     文件      11600  2013-05-09 17:41  Ex4.1 Calculator\Ex4.1 Calculator\bin\Release\Ex4.1 Calculator.vshost.exe

     文件        490  2010-03-17 22:39  Ex4.1 Calculator\Ex4.1 Calculator\bin\Release\Ex4.1 Calculator.vshost.exe.manifest

     文件       5359  2013-05-09 11:50  Ex4.1 Calculator\Ex4.1 Calculator\obj\x86\Debug\DesignTimeResolveAssemblyReferences.cache

     文件       6322  2013-05-13 19:56  Ex4.1 Calculator\Ex4.1 Calculator\obj\x86\Debug\DesignTimeResolveAssemblyReferencesInput.cache

     文件       3421  2013-05-13 19:56  Ex4.1 Calculator\Ex4.1 Calculator\obj\x86\Debug\Ex4.1 Calculator.csproj.FileListAbsolute.txt

     文件       9040  2013-05-09 12:18  Ex4.1 Calculator\Ex4.1 Calculator\obj\x86\Debug\Ex4.1 Calculator.csprojResolveAssemblyReference.cache

     文件      15360  2013-05-13 19:56  Ex4.1 Calculator\Ex4.1 Calculator\obj\x86\Debug\Ex4.1 Calculator.exe

     文件      36352  2013-05-13 19:56  Ex4.1 Calculator\Ex4.1 Calculator\obj\x86\Debug\Ex4.1 Calculator.pdb

     文件        180  2013-05-13 19:56  Ex4.1 Calculator\Ex4.1 Calculator\obj\x86\Debug\Ex4._1_Calculator.Form1.resources

     文件        180  2013-05-09 08:36  Ex4.1 Calculator\Ex4.1 Calculator\obj\x86\Debug\Ex4._1_Calculator.Properties.Resources.resources

     文件        300  2013-05-09 09:36  Ex4.1 Calculator\Ex4.1 Calculator\obj\x86\Debug\GenerateResource.read.1.tlog

     文件        738  2013-05-09 09:36  Ex4.1 Calculator\Ex4.1 Calculator\obj\x86\Debug\GenerateResource.write.1.tlog

     文件        975  2013-05-13 19:56  Ex4.1 Calculator\Ex4.1 Calculator\obj\x86\Debug\Ex4.1 Calculator.csproj.GenerateResource.Cache

     文件       6308  2013-05-09 17:41  Ex4.1 Calculator\Ex4.1 Calculator\obj\x86\Release\DesignTimeResolveAssemblyReferencesInput.cache

     文件        780  2013-05-09 17:41  Ex4.1 Calculator\Ex4.1 Calculator\obj\x86\Release\Ex4.1 Calculator.csproj.FileListAbsolute.txt

     文件        975  2013-05-09 17:41  Ex4.1 Calculator\Ex4.1 Calculator\obj\x86\Release\Ex4.1 Calculator.csproj.GenerateResource.Cache

     文件      14848  2013-05-09 17:41  Ex4.1 Calculator\Ex4.1 Calculator\obj\x86\Release\Ex4.1 Calculator.exe

     文件      28160  2013-05-09 17:41  Ex4.1 Calculator\Ex4.1 Calculator\obj\x86\Release\Ex4.1 Calculator.pdb

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