????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?Calc
{
????public?partial?class?Form1?:?Form
????{
????????public?string?strOutput?=?string.Empty;//文本框內(nèi)容
????????public?double?Num?=?0;//記錄所輸入數(shù)值
????????public?double?NumFirst?=?0;//被除數(shù)、被減數(shù)、因數(shù)、加數(shù)
????????public?double?NumLast?=?0;//除數(shù)、減數(shù)、因數(shù)、加數(shù)
????????public?double?Result?=?0;//商、差、積、和
????????public?double?LastResult?=?0;//記錄最后一次結(jié)果
????????public?bool?OperClick?=?false;//判斷所輸入數(shù)值是NumFirst還是NumLast
????????public?char?Operator?=?‘\0‘;//操作符
????????public?char?Operator2?=?‘\0‘;//存儲(chǔ)上一次操作符
????????public?bool?dotClick?=?false;//判斷小數(shù)點(diǎn)是否被按下默認(rèn)否
????????double?lastDecimalNum?=?1;//最后一次點(diǎn)擊小數(shù)點(diǎn)的精度

????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????}

????????private?void?Form1_Load（object?sender?EventArgs?e）
????????{
????????????//數(shù)字按鈕
????????????EventHandler?eh?=?new?EventHandler（Num_Click）;
????????????num_0.Click?+=?eh;
????????????num_1.Click?+=?eh;
????????????num_2.Click?+=?eh;
????????????num_3.Click?+=?eh;
????????????num_4.Click?+=?eh;
????????????num_5.Click?+=?eh;
????????????num_6.Click?+=?eh;
????????????num_7.Click?+=?eh;
????????????num_8.Click?+=?eh;
????????????num_9.Click?+=?eh;

????????????//操作符按鈕
????????????EventHandler?eh2?=?new?EventHandler（Btn_Click）;
????????????btn_add.Click?+=?eh2;
????????????btn_mul.Click?+=?eh2;
????????????btn_div.Click?+=?eh2;
????????????btn_sub.Click?+=?eh2;
????????}

????????#region?獲取鍵盤按鈕并觸發(fā)相應(yīng)按鈕單機(jī)事件
????????//獲取鍵盤按鈕并觸發(fā)相應(yīng)按鈕單機(jī)事件
????????protected?override?bool?ProcessCmdKey（ref?Message?msg?Keys?keyData）
????????{
????????????//?if?it?is?a?hotkey?return?true;?otherwise?return?false
????????????switch?（keyData）
????????????{
????????????????case?Keys.NumPad0:
????????????????????num_0.Focus（）;
????????????????????num_0.PerformClick（）;
????????????????????return?true;
????????????????case?Keys.NumPad1:
????????????????????num_1.Focus（）;
????????????????????num_1.PerformClick（）;
????????????????????return?true;
????????????????case?Keys.NumPad2:
????????????????????num_2.Focus（）;
????????????????????num_2.PerformClick（）;
????????????????????return?true;
????????????????case?Keys.NumPad3:
????????????????????num_3.Focus（）;
????????????????????num_3.PerformClick（）;
????????????????????return?true;
????????????????case?Keys.NumPad4:
????????????????????num_4.Focus（）;
????????????????????num_4.PerformClick（）;
????????????????????return?true;
????????????????case?Keys.NumPad5:
????????????????????num_5.Focus（）;
????????????????????num_5.PerformClick（）;
????????????????????return?true;
????????????????case?Keys.NumPad6:
????????????????????num_6.Focus（）;
????????????????????num_6.PerformClick（）;
????????????????????return?true;
????????????????case?Keys.NumPad7:
????????????????????num_7.Focus（）;
??

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件??????16896??2018-11-18?16:23??Calc\bin\Debug\Calc.exe

?????文件??????32256??2018-11-18?16:23??Calc\bin\Debug\Calc.pdb

?????文件??????24224??2018-11-18?16:15??Calc\bin\Debug\Calc.vshost.exe

?????文件????????490??2018-04-12?07:35??Calc\bin\Debug\Calc.vshost.exe.manifest

?????文件??????15360??2018-10-23?14:26??Calc\bin\Release\Calc.exe

?????文件??????28160??2018-10-23?14:26??Calc\bin\Release\Calc.pdb

?????文件??????24224??2018-10-23?14:26??Calc\bin\Release\Calc.vshost.exe

?????文件????????490??2018-04-12?07:35??Calc\bin\Release\Calc.vshost.exe.manifest

?????文件???????5310??2018-07-15?10:34??Calc\calculator.csproj

?????文件????????453??2018-07-13?14:13??Calc\calculator.csproj.user

?????文件??????11885??2018-11-18?16:23??Calc\Form1.cs

?????文件??????18924??2018-10-23?18:52??Calc\Form1.Designer.cs

?????文件???????5817??2018-11-18?16:23??Calc\Form1.resx

?????文件????????180??2018-07-13?22:07??Calc\obj\x86\Debug\Calc.CalcForm.resources

?????文件???????3860??2018-07-13?22:18??Calc\obj\x86\Debug\Calc.csproj.FileListAbsolute.txt

?????文件???????1035??2018-07-13?22:18??Calc\obj\x86\Debug\Calc.csproj.GenerateResource.Cache

?????文件??????16896??2018-11-18?16:23??Calc\obj\x86\Debug\Calc.exe

?????文件????????180??2018-11-18?16:23??Calc\obj\x86\Debug\Calc.Form1.resources

?????文件????????180??2018-07-13?22:19??Calc\obj\x86\Debug\Calc.Form2.resources

?????文件??????32256??2018-11-18?16:23??Calc\obj\x86\Debug\Calc.pdb

?????文件????????180??2018-10-23?18:52??Calc\obj\x86\Debug\Calc.Properties.Resources.resources

?????文件???????2262??2018-11-18?16:19??Calc\obj\x86\Debug\calculator.csproj.FileListAbsolute.txt

?????文件????????977??2018-11-18?16:23??Calc\obj\x86\Debug\calculator.csproj.GenerateResource.Cache

?????文件???????9180??2018-11-18?16:19??Calc\obj\x86\Debug\calculator.csprojResolveAssemblyReference.cache

?????文件???????5426??2018-05-23?14:59??Calc\obj\x86\Debug\DesignTimeResolveAssemblyReferences.cache

?????文件???????7029??2018-10-04?15:21??Calc\obj\x86\Debug\DesignTimeResolveAssemblyReferencesInput.cache

?????文件????????296??2015-06-10?09:04??Calc\obj\x86\Debug\GenerateResource.read.1.tlog

?????文件????????862??2015-06-10?09:04??Calc\obj\x86\Debug\GenerateResource.write.1.tlog

?????文件??????15360??2018-10-23?14:26??Calc\obj\x86\Release\Calc.exe

?????文件????????180??2018-10-22?23:01??Calc\obj\x86\Release\Calc.Form1.resources

............此處省略28個(gè)文件信息