本文是.NET異步和多執行緒系列的第五章，本章將綜合之前分享的異步和多執行緒來實作簡單的雙色球專案，
話不多說，下面我們直接進入本章主題，
首先我們來看下需求分析：
雙色球：投注號碼由6個紅色球號碼和1個藍色球號碼組成，
紅色球號碼：從01--33中選擇，不重復，
藍色球號碼：從01--16中選擇，
球號碼隨機的規則：遠程獲取一個隨機資料，這個會有較長的時間損耗，
雙色球專案界面設計如下：
接下來我們重點來看下代碼：
模擬獲取遠程亂數：
using System; using System.Threading; namespace MyLottery.Common { /// <summary> /// 解決亂數重復問題 /// 同時模擬遠程請求的隨機延時 /// </summary> public class RandomHelper { /// <summary> /// 隨機獲取數字并等待一段時間 /// </summary> public int GetRandomNumberDelay(int min, int max) { Thread.Sleep(this.GetRandomNumber(500, 1000)); //隨機休息一下 return this.GetRandomNumber(min, max); } /// <summary> /// 獲取亂數（解決重復問題） /// </summary> public int GetRandomNumber(int min, int max) { Guid guid = Guid.NewGuid(); //每次都是全新的ID string sGuid = guid.ToString(); int seed = DateTime.Now.Millisecond; for (int i = 0; i < sGuid.Length; i++) { switch (sGuid[i]) { case 'a': case 'b': case 'c': case 'd': case 'e': case 'f': case 'g': seed = seed + 1; break; case 'h': case 'i': case 'j': case 'k': case 'l': case 'm': case 'n': seed = seed + 2; break; case 'o': case 'p': case 'q': case 'r': case 's': case 't': seed = seed + 3; break; case 'u': case 'v': case 'w': case 'x': case 'y': case 'z': seed = seed + 3; break; default: seed = seed + 4; break; } } Random random = new Random(seed); return random.Next(min, max); } } }
界面核心代碼如下：
using System; using System.Collections.Generic; using System.Threading; using System.Threading.Tasks; using System.Windows.Forms; using MyLottery.Common; namespace MyLottery { /// <summary> /// 多執行緒雙色球專案 /// 需求: /// 雙色球：投注號碼由6個紅色球號碼和1個藍色球號碼組成， /// 紅色球號碼：從01--33中選擇，不重復， /// 藍色球號碼：從01--16中選擇， /// /// 球號碼隨機的規則：遠程獲取一個隨機資料，這個會有較長的時間損耗， /// </summary> public partial class Form1 : Form { public Form1() { InitializeComponent(); this.btnStart.Enabled = true; this.btnStop.Enabled = false; } #region 欄位和屬性 #region 資料 /// <summary> /// 紅球集合 其實可以寫入組態檔 /// </summary> public string[] _redNums = { "01","02","03","04","05","06","07","08","09","10", "11","12","13","14","15","16","17","18","19","20", "21","22","23","24","25","26","27","28","29","30", "31","32","33" }; /// <summary> /// 藍球集合 /// </summary> private string[] _blueNums = { "01","02","03","04","05","06","07","08","09","10", "11","12","13","14","15","16" }; #endregion 資料 private bool _isGoOn = true; private List<Task> _taskList = new List<Task>(); private static readonly object _lockObj = new object(); #endregion 欄位和屬性 /// <summary> /// 點擊開始 /// </summary> private void btnStart_Click(object sender, EventArgs e) { try { #region 初始化動作 this.btnStart.Text = "運行ing"; this.btnStart.Enabled = false; this._isGoOn = true; this._taskList = new List<Task>(); this.lblBlue.Text = "00"; this.lblRed1.Text = "00"; this.lblRed2.Text = "00"; this.lblRed3.Text = "00"; this.lblRed4.Text = "00"; this.lblRed5.Text = "00"; this.lblRed6.Text = "00"; #endregion 初始化動作 Thread.Sleep(1000); foreach (var control in this.gboSSQ.Controls) { if (control is Label) { Label label = (Label)control; if (label.Name.Contains("Blue")) { _taskList.Add(Task.Run(() => { try { while (_isGoOn) { //1、獲取亂數 int index = new RandomHelper().GetRandomNumberDelay(0, 16); string sNumber = this._blueNums[index]; //2、更新界面 //this.lblBlue.Text = sNumber; //子執行緒不能操作控制元件，委托給主執行緒操作 //this.Invoke this.Invoke(new Action(() => { label.Text = sNumber; })); //3、回圈 } } catch (Exception ex) { Console.WriteLine(ex.ToString()); } })); } else if (label.Name.Contains("Red")) { _taskList.Add(Task.Run(() => { try { while (_isGoOn) { int index = new RandomHelper().GetRandomNumberDelay(0, 33); string sNumber = this._redNums[index]; //可能重復 得去重 //檢測下是否重復，直接比對界面 //獲取隨機 比對界面 更新 lock (_lockObj) { List<string> usedNumberList = this.GetUsedRedNumbers(); if (!usedNumberList.Contains(sNumber)) { this.Invoke(new Action(() => { //Thread.Sleep(10); label.Text = sNumber; //委托給主執行緒操作 })); //實際上是同步的 } } } } catch (Exception ex) { Console.WriteLine(ex.Message); } })); } } } Task.Factory.ContinueWhenAll(this._taskList.ToArray(), tArray => { this.ShowResult(); this.Invoke(new Action(() => { this.btnStart.Enabled = true; this.btnStop.Enabled = false; })); }); Task.Delay(10 * 1000).ContinueWith(t => { this.Invoke(new Action(() => { this.btnStop.Enabled = true; })); }); } catch (Exception ex) { Console.WriteLine("雙色球啟動出現例外：{0}", ex.ToString()); } } /// <summary> /// 點擊結束 /// </summary> private void btnStop_Click(object sender, EventArgs e) { this._isGoOn = false; #region 死鎖 //此處主執行緒不能直接WaitAll 界面會卡死 死鎖了 //主執行緒要等著子執行緒完成后才能往下走，而子執行緒又要等著主執行緒幫忙干件事后才能往下走，兩者都在等著對方，這就導致了死鎖， //{ // Task.WaitAll(this._taskList.ToArray()); // this.ShowResult(); //} #endregion 死鎖 #region ShowResult這事情在這里做不合適，應該放到回呼里面去做比較合適 //此處要等子執行緒完成的話應該再開一個子執行緒去等才對 //{ // Task.Run(() => // { // Task.WaitAll(this._taskList.ToArray()); // this.ShowResult(); // }); //} #endregion ShowResult這事情在這里做不合適，應該放到回呼里面去做比較合適 } #region 公共方法 /// <summary> /// 獲取已經使用過的紅色數字 /// </summary> private List<string> GetUsedRedNumbers() { List<string> usedNumberList = new List<string>(); foreach (var controler in this.gboSSQ.Controls) { if (controler is Label) { if (((Label)controler).Name.Contains("Red")) { usedNumberList.Add(((Label)controler).Text); } } } return usedNumberList; } /// <summary> /// 彈框提示資料 /// </summary> private void ShowResult() { MessageBox.Show(string.Format("本期雙色球結果為：{0} {1} {2} {3} {4} {5} 藍球{6}" , this.lblRed1.Text , this.lblRed2.Text , this.lblRed3.Text , this.lblRed4.Text , this.lblRed5.Text , this.lblRed6.Text , this.lblBlue.Text)); } #endregion 公共方法 } }
運行結果如下：
Demo原始碼：
鏈接：https://pan.baidu.com/s/1J2OFDxI4dHspkrh9CJy2Sg 提取碼：h2l3
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標籤：ASP.NET