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?MyCalc
{
????public?partial?class?Form1?:?Form
????{
????????private?double?_num1?=?0?_num2?=?0?_result?=?0;
????????private?string?_operator?=?““;
????????private?int?_operatorCount?=?0;
????????private?bool?_firstNumberFlag?=?false;
????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????}
????????
????????private?void?buttonNum0_Click（object?sender?EventArgs?e）
????????{
????????????if?（_firstNumberFlag?==?true）
????????????{
????????????????textBoxResult.Text?=?“0“;
????????????????_firstNumberFlag?=?false;
????????????}
????????????else
????????????????textBoxResult.Text?=?textBoxResult.Text?+?“0“;
????????????textBoxResult.Focus（）;
????????????textBoxResult.Select（textBoxResult.Text.Length?0）;
????????}

????????private?void?butto

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件?????127488??2019-02-28?20:49??MyCalc\MyCalc\bin\Debug\MyCalc.exe

?????文件??????36352??2019-02-28?20:49??MyCalc\MyCalc\bin\Debug\MyCalc.pdb

?????文件??????14328??2019-02-28?20:42??MyCalc\MyCalc\bin\Debug\MyCalc.vshost.exe

?????文件??????13758??2019-02-28?20:49??MyCalc\MyCalc\Form1.cs

?????文件??????18610??2019-02-28?16:13??MyCalc\MyCalc\Form1.Designer.cs

?????文件??????87242??2019-02-28?16:13??MyCalc\MyCalc\Form1.resx

?????文件???????3945??2019-02-28?15:09??MyCalc\MyCalc\MyCalc.csproj

?????文件????????581??2019-02-28?20:42??MyCalc\MyCalc\obj\Debug\MyCalc.csproj.FileListAbsolute.txt

?????文件????????847??2019-02-28?16:13??MyCalc\MyCalc\obj\Debug\MyCalc.csproj.GenerateResource.Cache

?????文件?????127488??2019-02-28?20:49??MyCalc\MyCalc\obj\Debug\MyCalc.exe

?????文件??????54648??2019-02-28?16:13??MyCalc\MyCalc\obj\Debug\MyCalc.Form1.resources

?????文件??????36352??2019-02-28?20:49??MyCalc\MyCalc\obj\Debug\MyCalc.pdb

?????文件????????180??2019-02-28?15:49??MyCalc\MyCalc\obj\Debug\MyCalc.Properties.Resources.resources

?????文件??????54082??2019-02-28?15:52??MyCalc\MyCalc\ooopic_1551337664.ico

?????文件????????487??2019-02-27?16:05??MyCalc\MyCalc\Program.cs

?????文件???????1344??2019-02-26?15:33??MyCalc\MyCalc\Properties\AssemblyInfo.cs

?????文件??????54082??2019-02-28?15:07??MyCalc\MyCalc\Properties\ooopic_1551337664.ico

?????文件???????2862??2019-02-26?15:33??MyCalc\MyCalc\Properties\Resources.Designer.cs

?????文件???????5612??2019-02-26?15:33??MyCalc\MyCalc\Properties\Resources.resx

?????文件???????1091??2019-02-26?15:33??MyCalc\MyCalc\Properties\Settings.Designer.cs

?????文件????????249??2019-02-26?15:33??MyCalc\MyCalc\Properties\Settings.settings

?????文件????????908??2019-02-26?15:33??MyCalc\MyCalc.sln

????..A..H.?????16384??2019-02-28?20:49??MyCalc\MyCalc.suo

?????目錄??????????0??2019-02-26?15:37??MyCalc\MyCalc\obj\Debug\Refactor

?????目錄??????????0??2019-02-26?15:33??MyCalc\MyCalc\obj\Debug\TempPE

?????目錄??????????0??2019-02-28?16:10??MyCalc\MyCalc\bin\Debug

?????目錄??????????0??2019-02-28?20:49??MyCalc\MyCalc\obj\Debug

?????目錄??????????0??2019-02-26?15:33??MyCalc\MyCalc\bin

?????目錄??????????0??2019-02-26?15:33??MyCalc\MyCalc\obj

?????目錄??????????0??2019-02-28?15:51??MyCalc\MyCalc\Properties

............此處省略5個文件信息