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

namespace?Calculator
{
????public?partial?class?Form1?:?Form
????{
????????string?str?opp?opp1;
????????double?num1?num2?result;
????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????}
????????private?void?number（object?sender?EventArgs?e）
????????{
????????????Button?b?=?（Button）（sender）;
????????????str?=?b.Text;
????????????if?（txtOutput.Text?==?“0“）
????????????{
????????????????txtOutput.Text?=?str;
????????????}
????????????else
????????????????txtOutput.Text?=?txtOutput.Text?+?str;
????????}
????????private?void?op

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2019-03-14?14:27??2.3設(shè)計(jì)復(fù)雜計(jì)算器\
?????目錄???????????0??2019-03-14?14:27??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\
?????文件?????????920??2019-03-12?10:43??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator.sln
?????文件???????46080??2019-06-03?13:38??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator.v11.suo
?????文件?????????187??2019-03-12?10:43??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\App.config
?????目錄???????????0??2019-03-14?14:27??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\bin\
?????目錄???????????0??2019-03-14?14:27??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\bin\Debug\
?????文件???????14848??2019-06-03?13:37??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\bin\Debug\Calculator.exe
?????文件?????????187??2019-03-12?10:43??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\bin\Debug\Calculator.exe.config
?????文件???????36352??2019-06-03?13:37??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\bin\Debug\Calculator.pdb
?????文件???????22984??2019-06-03?13:37??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\bin\Debug\Calculator.vshost.exe
?????文件?????????187??2019-03-12?10:43??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\bin\Debug\Calculator.vshost.exe.config
?????文件?????????490??2018-04-12?07:35??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\bin\Debug\Calculator.vshost.exe.manifest
?????文件????????3799??2019-03-12?11:21??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\Calculator.csproj
?????文件????????4682??2019-06-03?13:38??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\Form1.cs
?????文件???????17022??2019-06-03?13:38??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\Form1.Designer.cs
?????文件????????6019??2019-06-03?13:38??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\Form1.resx
?????目錄???????????0??2019-03-14?14:27??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\obj\
?????目錄???????????0??2019-03-14?14:27??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\obj\Debug\
?????文件????????3181??2019-06-03?13:37??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\obj\Debug\Calculator.csproj.FileListAbsolute.txt
?????文件?????????975??2019-03-18?22:06??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\obj\Debug\Calculator.csproj.GenerateResource.Cache
?????文件????????2209??2019-03-14?13:23??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\obj\Debug\Calculator.csprojResolveAssemblyReference.cache
?????文件???????14848??2019-06-03?13:37??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\obj\Debug\Calculator.exe
?????文件?????????180??2019-03-14?14:17??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\obj\Debug\Calculator.Form1.resources
?????文件???????36352??2019-06-03?13:37??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\obj\Debug\Calculator.pdb
?????文件?????????180??2019-03-14?13:23??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\obj\Debug\Calculator.Properties.Resources.resources
?????文件????????1592??2019-03-14?14:18??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\obj\Debug\DesignTimeResolveAssemblyReferences.cache
?????文件????????7019??2019-06-03?13:36??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache
?????文件???????????0??2019-03-12?10:43??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\obj\Debug\TemporaryGeneratedFile_036C0B5B-1481-4323-8D20-8F5ADCB23D92.cs
?????文件???????????0??2019-03-12?10:43??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\obj\Debug\TemporaryGeneratedFile_5937a670-0e60-4077-877b-f7221da3dda1.cs
?????文件???????????0??2019-03-12?10:43??2.3設(shè)計(jì)復(fù)雜計(jì)算器\Calculator\obj\Debug\TemporaryGeneratedFile_E7A71F73-0F8D-4B9B-B56E-8E70B10BC5D3.cs
............此處省略8個(gè)文件信息