using?System;
using?System.Windows.Forms;

namespace?WindowsFormsApp13
{
????public?partial?class?Form1?:?Form
????{
????????public?double?x?=?0;
????????public?double?y?=?0;
????????public?double?jieguo?=?0;
????????public?char?fuhao?=?‘0‘;
????????public?bool?ky?=?false;
????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????}
????????public?void?yunshuan（）
????????{
????????????switch?（fuhao）
????????????{
????????????????case?‘+‘:
????????????????????{
????????????????????????jieguo?=?x?+?y;
????????????????????}
????????????????????break;
????????????????case?‘-‘:
????????????????????{
????????????????????????jieguo?=?x?-?y;
????????????????????}
????????????????????break;
????????????????case?‘*‘:
????????????????????{
????????????

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

????..A..H.?????24576??2020-01-13?14:22??WindowsFormsApp13\.vs\WindowsFormsApp13\v16\.suo

?????文件??????????0??2020-01-13?14:13??WindowsFormsApp13\.vs\WindowsFormsApp13\v16\Server\sqlite3\db.lock

?????文件?????602112??2020-01-13?14:22??WindowsFormsApp13\.vs\WindowsFormsApp13\v16\Server\sqlite3\storage.ide

?????文件????????189??2020-01-13?14:13??WindowsFormsApp13\WindowsFormsApp13\App.config

?????文件??????14848??2020-01-13?14:21??WindowsFormsApp13\WindowsFormsApp13\bin\Debug\WindowsFormsApp13.exe

?????文件????????189??2020-01-13?14:13??WindowsFormsApp13\WindowsFormsApp13\bin\Debug\WindowsFormsApp13.exe.config

?????文件??????38400??2020-01-13?14:21??WindowsFormsApp13\WindowsFormsApp13\bin\Debug\WindowsFormsApp13.pdb

?????文件???????9395??2020-01-13?14:21??WindowsFormsApp13\WindowsFormsApp13\Form1.cs

?????文件??????12934??2020-01-13?14:21??WindowsFormsApp13\WindowsFormsApp13\Form1.Designer.cs

?????文件????????823??2020-01-13?14:13??WindowsFormsApp13\WindowsFormsApp13\obj\Debug\DesignTimeResolveAssemblyReferences.cache

?????文件???????7284??2020-01-13?14:13??WindowsFormsApp13\WindowsFormsApp13\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache

?????文件????????795??2020-01-13?14:21??WindowsFormsApp13\WindowsFormsApp13\obj\Debug\WindowsFormsApp13.csproj.FileListAbsolute.txt

?????文件????????954??2020-01-13?14:21??WindowsFormsApp13\WindowsFormsApp13\obj\Debug\WindowsFormsApp13.csproj.GenerateResource.cache

?????文件??????14848??2020-01-13?14:21??WindowsFormsApp13\WindowsFormsApp13\obj\Debug\WindowsFormsApp13.exe

?????文件??????38400??2020-01-13?14:21??WindowsFormsApp13\WindowsFormsApp13\obj\Debug\WindowsFormsApp13.pdb

?????文件????????180??2020-01-13?14:21??WindowsFormsApp13\WindowsFormsApp13\obj\Debug\WindowsFormsApp13.Properties.Resources.resources

?????文件????????443??2020-01-13?14:21??WindowsFormsApp13\WindowsFormsApp13\Program.cs

?????文件???????1326??2020-01-13?14:13??WindowsFormsApp13\WindowsFormsApp13\Properties\AssemblyInfo.cs

?????文件???????2847??2020-01-13?14:13??WindowsFormsApp13\WindowsFormsApp13\Properties\Resources.Designer.cs

?????文件???????5612??2020-01-13?14:13??WindowsFormsApp13\WindowsFormsApp13\Properties\Resources.resx

?????文件???????1104??2020-01-13?14:13??WindowsFormsApp13\WindowsFormsApp13\Properties\Settings.Designer.cs

?????文件????????249??2020-01-13?14:13??WindowsFormsApp13\WindowsFormsApp13\Properties\Settings.settings

?????文件???????3505??2020-01-13?14:19??WindowsFormsApp13\WindowsFormsApp13\WindowsFormsApp13.csproj

?????文件???????1157??2020-01-13?14:13??WindowsFormsApp13\WindowsFormsApp13.sln

?????目錄??????????0??2020-01-13?14:22??WindowsFormsApp13\.vs\WindowsFormsApp13\v16\Server\sqlite3

?????目錄??????????0??2020-01-13?14:13??WindowsFormsApp13\.vs\WindowsFormsApp13\v16\Server

?????目錄??????????0??2020-01-13?14:13??WindowsFormsApp13\WindowsFormsApp13\obj\Debug\TempPE

?????目錄??????????0??2020-01-13?14:13??WindowsFormsApp13\.vs\WindowsFormsApp13\v16

?????目錄??????????0??2020-01-13?14:21??WindowsFormsApp13\WindowsFormsApp13\bin\Debug

?????目錄??????????0??2020-01-13?14:21??WindowsFormsApp13\WindowsFormsApp13\obj\Debug

............此處省略10個文件信息