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?StuSelector
{
????public?partial?class?FrmMain?:?Form
????{
????????public?FrmMain（）
????????{
????????????InitializeComponent（）;
???????????
????????}
????????private?PickStu?objSelctor?=?new?PickStu（）;//實例化選擇學員對象
????????private?PickExam?objExam?=?new?PickExam（）;//實例化選擇試題對象
????????int?second?=?0;//定義一個全局變量

????????private?void?FrmMain_Load（object?sender?EventArgs?e）
????????{
????????????this.txbName.Focus（）;
????????}
????????//開始按鈕
????????private?void?button1_Click（object?sender?EventArgs?e）
????????{
????????????this.second?=?3;
????????????this.lblCount.Text?=?“3“;
????????????//this.lblSecond1.ForeColor?=?Color.Black;
????????????//this.lblSecond2.ForeColor?=?Color.Black;
????????????this.lblSecond3.ForeColor?=?Color.Black;
????????????this.lblSecond4.ForeColor?=?Color.Black;
????????????this.lblSecond5.ForeColor?=?Color.Black;
????????????this.timerSelect.Start（）;
????????????this.btnStart.Enabled?=?false;
????????????this.timer1.Start（）;
????????????this.timerExam.Start（）;
????????}
????????//學院對象隨機選擇事件
????????private?void?timerSelect_Tick（object?sender?EventArgs?e）
????????{
????????????StuInfor?objStudent?=?this.objSelctor.GetStudent（）;//學員對象
????????????this.txbName.Text?=?objStudent.stuName;
????????????this.txbSno.Text?=?objStudent.stuSno.ToString（）;
????????????this.txbClass.Text?=?objStudent.stuClass;
????????????this.txbGrade.Text?=?objStudent.stuGrade;
????????????string?text=“18屆記者團“;
????????????if（text.Equals（objStudent.stuClass.ToString（）））
????????????{
????????????????this.lblExam.Text?=?““;
????????????}
???????????
????????}

????????//倒計時顯示事件
????????private?void?timer1_Tick（object?sender?EventArgs?e）
????????{
????????????this.second--;//遞減
????????????if（second==0）
????????????{
????????????????this.timer1.Stop（）;
????????????????this.btnStart.Enabled?=?true;
????????????????this.timerSelect.Stop（）;
????????????????this.timerExam.Stop（）;
????????????}
????????????this.lblCount.Text?=?this.second.ToString（）;
????????????switch?（second）
????????????{
????????????????//case?4:
????????????????//????this.lblSecond1.ForeColor?=?Color.Red;
????????????????//????break;
????????????????//case?3:
????????????????//????this.lblSecond2.ForeColor?=?Color.Red;
????????????????//????break;
????????????????case?2:
????????????????????this.lblSecond3.ForeColor?=?Color.Red;
????????????????????break;
????????????????case?1:
????????????????????this.lblSecond4.ForeColor?=?Color.Red;
????????????????????break;
????????????????case?0:
????????????????????this.lblSecond5.ForeColor?=?Color.Red;
????????????????????break;

????????????}
????????}
????????//試題隨機事件
????????private?void?timerExam_Tick（object?sender?EventArgs

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2019-04-27?00:50??StuSelector\
?????目錄???????????0??2019-04-27?00:50??StuSelector\StuSelector\
?????文件???????19835??2018-10-29?13:59??StuSelector\StuSelector\FrmMain.Designer.cs
?????文件????????3304??2018-10-29?13:59??StuSelector\StuSelector\FrmMain.cs
?????文件???????13141??2018-10-29?13:59??StuSelector\StuSelector\FrmMain.resx
?????文件????????1851??2018-10-29?09:20??StuSelector\StuSelector\PickExam.cs
?????文件????????2009??2018-10-29?09:18??StuSelector\StuSelector\PickStu.cs
?????文件?????????525??2018-10-29?09:18??StuSelector\StuSelector\Program.cs
?????目錄???????????0??2019-04-27?00:50??StuSelector\StuSelector\Properties\
?????文件????????1364??2018-10-15?10:56??StuSelector\StuSelector\Properties\AssemblyInfo.cs
?????文件????????2874??2018-10-15?10:56??StuSelector\StuSelector\Properties\Resources.Designer.cs
?????文件????????5612??2018-10-15?10:56??StuSelector\StuSelector\Properties\Resources.resx
?????文件????????1098??2018-10-15?10:56??StuSelector\StuSelector\Properties\Settings.Designer.cs
?????文件?????????249??2018-10-15?10:56??StuSelector\StuSelector\Properties\Settings.settings
?????文件?????????272??2018-10-29?09:18??StuSelector\StuSelector\StuExam.cs
?????文件????????1385??2018-10-29?09:06??StuSelector\StuSelector\StuInfor.cs
?????文件????????3900??2018-10-29?09:21??StuSelector\StuSelector\StuSelector.csproj
?????目錄???????????0??2019-04-27?00:50??StuSelector\StuSelector\bin\
?????目錄???????????0??2019-04-27?00:50??StuSelector\StuSelector\bin\Debug\
?????文件????????2025??2018-10-29?18:26??StuSelector\StuSelector\bin\Debug\StuExam.txt
?????文件???????20480??2018-10-29?13:59??StuSelector\StuSelector\bin\Debug\StuSelector.exe
?????文件???????52736??2018-10-29?13:59??StuSelector\StuSelector\bin\Debug\StuSelector.pdb
?????文件???????24224??2018-10-29?14:00??StuSelector\StuSelector\bin\Debug\StuSelector.vshost.exe
?????文件?????????490??2013-03-18?17:00??StuSelector\StuSelector\bin\Debug\StuSelector.vshost.exe.manifest
?????文件????????3167??2018-10-29?00:00??StuSelector\StuSelector\bin\Debug\student.txt
?????目錄???????????0??2019-06-03?17:10??StuSelector\StuSelector\bin\Release\
?????文件????????4286??2018-10-29?13:56??StuSelector\StuSelector\bitbug_favicon.ico
?????目錄???????????0??2019-04-27?00:50??StuSelector\StuSelector\obj\
?????目錄???????????0??2019-04-27?00:50??StuSelector\StuSelector\obj\Debug\
?????文件????????2301??2018-10-28?23:52??StuSelector\StuSelector\obj\Debug\DesignTimeResolveAssemblyReferences.cache
?????文件????????6877??2018-10-29?13:57??StuSelector\StuSelector\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache
............此處省略13個文件信息