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?隨機(jī)出題
{
????public?partial?class?Form1?:?Form
????{
????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????}
????????private?void?Form1_Load（object?sender?EventArgs?e）
????????{

????????}
????????int?a?b;
????????string?str;
????????int?result;
????????Random?rnd?=?new?Random（）;
????????private?void?button1_Click（object?sender?EventArgs?e）
????????{
????????????a?=?rnd.Next（9）?+?1;
????????????b?=?rnd.Next（9）?+?1;
????????????int?c;
????????????if?（a?????????????{
????????????????c?=?a;
????????????????a?=?b;
????????????????b?=?c;
????????????}
???????????
????????????
????????????int?d?=?rnd.Next（4）;
????????????switch?（d）
????????????{
????????????????case?0:?str?=?“+“;?result?=?a?+?b;?break;
????????????????case?1:?str??=?“-“;?result?=?a?-?b;?break;
????????????????case?2:?str??=?“*“;?result?=?a?*?b;?break;
????????????????case?3:?str??=?“/“;?result?=?a?/?b;?break;

????????????}
????????????label1.Text?=?a.ToString（）;
????????????label3.Text?=?b.ToString（）;
????????????label2.Text?=?str?;
????????????textBox1.Text?=?““;?

????????}

????????private?void?button3_Click（object?sender?EventArgs?e）
????????{
?????????????string?str?=?textBox1.Text;
????????????double?d?=?double.Parse（str）;
????????????string?disp?=?“??“;
????????????if?（d?==?result）
????????????????disp?+=?“√“;
????????????else?
????????????????disp?+=?“X“;
????????????listBox1.Items.Add（disp）;
????????}
???
???????
????}
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2015-10-05?18:46??隨機(jī)出題\
?????目錄???????????0??2015-10-05?18:57??隨機(jī)出題\隨機(jī)出題\
?????文件????????7207??2015-10-06?20:58??隨機(jī)出題\隨機(jī)出題\Form1.Designer.cs
?????文件????????1721??2015-10-06?20:58??隨機(jī)出題\隨機(jī)出題\Form1.cs
?????文件????????5817??2015-10-06?20:58??隨機(jī)出題\隨機(jī)出題\Form1.resx
?????文件?????????383??2015-10-06?20:48??隨機(jī)出題\隨機(jī)出題\Program.cs
?????目錄???????????0??2015-10-05?18:46??隨機(jī)出題\隨機(jī)出題\Properties\
?????文件????????1356??2015-10-05?18:46??隨機(jī)出題\隨機(jī)出題\Properties\AssemblyInfo.cs
?????目錄???????????0??2015-10-05?18:46??隨機(jī)出題\隨機(jī)出題\bin\
?????目錄???????????0??2015-10-06?19:26??隨機(jī)出題\隨機(jī)出題\bin\Debug\
?????文件????????9216??2015-10-06?20:58??隨機(jī)出題\隨機(jī)出題\bin\Debug\隨機(jī)出題.exe
?????文件???????19968??2015-10-06?20:58??隨機(jī)出題\隨機(jī)出題\bin\Debug\隨機(jī)出題.pdb
?????文件???????11600??2015-10-06?20:59??隨機(jī)出題\隨機(jī)出題\bin\Debug\隨機(jī)出題.vshost.exe
?????文件?????????490??2015-07-10?19:01??隨機(jī)出題\隨機(jī)出題\bin\Debug\隨機(jī)出題.vshost.exe.manifest
?????目錄???????????0??2015-10-05?18:46??隨機(jī)出題\隨機(jī)出題\obj\
?????目錄???????????0??2015-10-05?18:46??隨機(jī)出題\隨機(jī)出題\obj\x86\
?????目錄???????????0??2015-11-23?21:11??隨機(jī)出題\隨機(jī)出題\obj\x86\Debug\
?????文件????????5420??2015-10-06?19:14??隨機(jī)出題\隨機(jī)出題\obj\x86\Debug\DesignTimeResolveAssemblyReferences.cache
?????文件????????6101??2015-10-06?20:58??隨機(jī)出題\隨機(jī)出題\obj\x86\Debug\DesignTimeResolveAssemblyReferencesInput.cache
?????文件?????????878??2015-10-05?18:46??隨機(jī)出題\隨機(jī)出題.sln
?????文件?????????180??2015-10-06?20:58??隨機(jī)出題\隨機(jī)出題\obj\x86\Debug\隨機(jī)出題.Form1.resources
?????文件?????????539??2015-10-06?20:59??隨機(jī)出題\隨機(jī)出題\obj\x86\Debug\隨機(jī)出題.csproj.FileListAbsolute.txt
?????文件?????????902??2015-10-06?20:58??隨機(jī)出題\隨機(jī)出題\obj\x86\Debug\隨機(jī)出題.csproj.GenerateResource.Cache
?????文件????????8418??2015-10-06?19:26??隨機(jī)出題\隨機(jī)出題\obj\x86\Debug\隨機(jī)出題.csprojResolveAssemblyReference.cache
?????文件????????9216??2015-10-06?20:58??隨機(jī)出題\隨機(jī)出題\obj\x86\Debug\隨機(jī)出題.exe
?????文件???????19968??2015-10-06?20:58??隨機(jī)出題\隨機(jī)出題\obj\x86\Debug\隨機(jī)出題.pdb
?????文件????????2874??2015-10-05?19:28??隨機(jī)出題\隨機(jī)出題\隨機(jī)出題.csproj
?????文件???????18432??2015-10-06?21:00??隨機(jī)出題\隨機(jī)出題.suo
?????目錄???????????0??2015-10-07?11:05??隨機(jī)出題\隨機(jī)出題\obj\x86\Debug\TempPE\