.NET异步和多线程系列(五)- 多线程双色球项目

本文是.NET异步和多线程系列的第五章,本章将综合之前分享的异步和多线程来实现简单的双色球项目。

话不多说,下面我们直接进入本章主题。

首先我们来看下需求分析:

  双色球:投注号码由6个红色球号码和1个蓝色球号码组成。

  红色球号码:从01--33中选择,不重复。

  蓝色球号码:从01--16中选择。

  球号码随机的规则:远程获取一个随机数据,这个会有较长的时间损耗。

双色球项目界面设计如下:

接下来我们重点来看下代码:

模拟获取远程随机数:

using System;
using System.Threading;

namespace MyLottery.Common
{
    /// <summary>
    /// 解决随机数重复问题
    /// 同时模拟远程请求的随机延时
    /// </summary>
    public class RandomHelper
    {
        /// <summary>
        /// 随机获取数字并等待一段时间
        /// </summary>
        public int GetRandomNumberDelay(int min, int max)
        {
            Thread.Sleep(this.GetRandomNumber(500, 1000)); //随机休息一下
            return this.GetRandomNumber(min, max);
        }

        /// <summary>
        /// 获取随机数(解决重复问题)
        /// </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);
        }
    }
}

界面核心代码如下:

using System;
using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
using System.Windows.Forms;

using MyLottery.Common;

namespace MyLottery
{
    /// <summary>
    /// 多线程双色球项目
    /// 需求:
    ///     双色球:投注号码由6个红色球号码和1个蓝色球号码组成。
    ///     红色球号码:从01--33中选择,不重复。
    ///     蓝色球号码:从01--16中选择。
    /// 
    /// 球号码随机的规则:远程获取一个随机数据,这个会有较长的时间损耗。
    /// </summary>
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            this.btnStart.Enabled = true;
            this.btnStop.Enabled = false;
        }

        #region 字段和属性

        #region 数据 

        /// <summary>
        /// 红球集合  其实可以写入配置文件
        /// </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>
        /// 蓝球集合
        /// </summary>
        private string[] _blueNums =
        {
            "01","02","03","04","05","06","07","08","09","10",
            "11","12","13","14","15","16"
        };

        #endregion 数据

        private bool _isGoOn = true;
        private List<Task> _taskList = new List<Task>();
        private static readonly object _lockObj = new object();

        #endregion 字段和属性

        /// <summary>
        /// 点击开始
        /// </summary>
        private void btnStart_Click(object sender, EventArgs e)
        {
            try
            {
                #region 初始化动作

                this.btnStart.Text = "运行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 初始化动作

                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、获取随机数 
                                        int index = new RandomHelper().GetRandomNumberDelay(0, 16);
                                        string sNumber = this._blueNums[index];

                                        //2、更新界面
                                        //this.lblBlue.Text = sNumber;
                                        //子线程不能操作控件,委托给主线程操作
                                        //this.Invoke
                                        this.Invoke(new Action(() =>
                                        {
                                            label.Text = sNumber;
                                        }));

                                        //3、循环
                                    }
                                }
                                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];
                                        //可能重复  得去重
                                        //检测下是否重复,直接比对界面
                                        //获取随机   比对界面   更新
                                        lock (_lockObj)
                                        {
                                            List<string> usedNumberList = this.GetUsedRedNumbers();
                                            if (!usedNumberList.Contains(sNumber))
                                            {
                                                this.Invoke(new Action(() =>
                                                {
                                                    //Thread.Sleep(10);
                                                    label.Text = sNumber; //委托给主线程操作
                                                })); //实际上是同步的
                                            }
                                        }
                                    }
                                }
                                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("双色球启动出现异常:{0}", ex.ToString());
            }
        }

        /// <summary>
        /// 点击结束
        /// </summary>
        private void btnStop_Click(object sender, EventArgs e)
        {
            this._isGoOn = false;

            #region 死锁

            //此处主线程不能直接WaitAll 界面会卡死 死锁了
            //主线程要等着子线程完成后才能往下走,而子线程又要等着主线程帮忙干件事后才能往下走,两者都在等着对方,这就导致了死锁。
            //{
            //    Task.WaitAll(this._taskList.ToArray());
            //    this.ShowResult();
            //}

            #endregion 死锁

            #region ShowResult这事情在这里做不合适,应该放到回调里面去做比较合适

            //此处要等子线程完成的话应该再开一个子线程去等才对
            //{
            //    Task.Run(() =>
            //    {
            //        Task.WaitAll(this._taskList.ToArray());
            //        this.ShowResult();
            //    });
            //}

            #endregion ShowResult这事情在这里做不合适,应该放到回调里面去做比较合适
        }

        #region 公共方法

        /// <summary>
        /// 获取已经使用过的红色数字
        /// </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>
        /// 弹框提示数据
        /// </summary>
        private void ShowResult()
        {
            MessageBox.Show(string.Format("本期双色球结果为:{0} {1} {2} {3} {4} {5}  蓝球{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
    }
}

运行结果如下:

 

Demo源码:

链接:https://pan.baidu.com/s/1J2OFDxI4dHspkrh9CJy2Sg 
提取码:h2l3

此文由博主精心撰写转载请保留此原文链接:https://www.cnblogs.com/xyh9039/p/13616391.html

版权声明:如有雷同纯属巧合,如有侵权请及时联系本人修改,谢谢!!!

posted @ 2020-09-04 23:20  谢友海  阅读(81)  评论(0编辑  收藏