c#用winform开发一个简易双色球项目

开始画面

抽奖中：

抽奖结果：

需要一个随机数Random的帮助类，让随机数唯一性

  public  class RandomHelper
    {

        public int GetNum(int min, int max)
        {
            Thread.Sleep();//随机休息1秒
            return GetIntNum(min,max);
        }

        /// <summary>
        /// 获取随机数，解决重复问题
        /// </summary>
        /// <param name="min">返回的随机数字包含下限</param>
        /// <param name="max">返回的随机数字不包含上限</param>
        /// <returns></returns>
        private  int GetIntNum(int min,int max)
        {

            Guid Guidnum = Guid.NewGuid();
            string guid =  Guidnum.ToString();
            int seed = DateTime.Now.Millisecond;
            for (int i = ; i < guid.Length; i++)
            {
                switch (guid[i])
                {
                    case 'a':
                    case 'b':
                    case 'c':
                    case 'd':
                    case 'e':
                    case 'f':
                    case 'g':
                        seed = seed + ;
                        break;
                    case 'h':
                    case 'i':
                    case 'j':
                    case 'k':
                    case 'l':
                    case 'm':
                    case 'n':
                        seed = seed + ;
                        break;
                    case 'o':
                    case 'p':
                    case 'q':
                    case 'r':
                    case 's':
                    case 't':
                        seed = seed + seed;
                        break;
                    case 'u':
                    case 'v':
                    case 'w':
                    case 'x':
                    case 'y':
                    case 'z':
                        seed = seed + ;
                        break;
                    default:
                        seed = seed + ;
                        break;
                }
            }

            return new Random(seed).Next(min,max);

        }

Form的 代码编写

先要放2个

  public Form1()
        {
            InitializeComponent();
            IsBegin = true;
            this.btnEnd.Enabled = false;
        }
        /// <summary>
        /// 标识是否开始摇奖
        /// </summary>
        private static bool IsBegin = true;

        private string[] RedNum = {
            "","","","","","","","","","","","","",
            "","","","","","","","","","","","","",
            "","","","","","",""
        };
        private string[] BuleNum = {
            "","","","","","","","","","","","","",
            "","",""
        };

        private void btnStart_Click(object sender, EventArgs e)
        {
            TaskFactory taskFactory = new TaskFactory();
            List<Task> taskList = new List<Task>();
            IsBegin = true;
            this.btnStart.Enabled = false;

           // Thread.Sleep(1000);
            this.btnEnd.Enabled = true;
            foreach (Control item in gBox.Controls)
            {
                if (item is Label)
                {
                    Label lbl = (Label)item;
                    taskList.Add(taskFactory.StartNew(
                     () => {
                         while (IsBegin)
                         {
                             this.UpdateNum(lbl);
                         }

                     }));
                }
            }
            taskFactory.ContinueWhenAll(taskList.ToArray(),tList=>this.ShowNumber());//等所有线程操作完毕后才显示中奖号。

        }
        /// <summary>
        /// 锁
        /// </summary>
        private static readonly object Num_Lock = new object();

        private void UpdateNum(Label lbl)
        {
            RandomHelper randomHelper = new RandomHelper();

            if (lbl.Name.Contains("Blue"))
            {
                int num = randomHelper.GetNum(,);
                string blueText = BuleNum[num];
                this.UpdateLbl(lbl, blueText);
            }
            else
            {
                int num = randomHelper.GetNum(, );
                string redText = RedNum[num];
                lock (Num_Lock)
                {
                    List<string> list = this.GetLabelList();
                    if (list.Contains(redText))
                    {
                        return;
                    }
                    else
                    {
                        this.UpdateLbl(lbl,redText);
                    }
                }
            }
        }
        /// <summary>
        /// 获取当前已经抽出的双色球，防止重复
        /// </summary>
        /// <returns>所有控件的值</returns>
        private List<string> GetLabelList()
        {
            List<string> strList = new List<string>();
            foreach (Control item in gBox.Controls)
            {
                if (item is Label)
                {
                    Label label = (Label)item;
                    strList.Add(label.Text);
                }
            }
            return strList;
        }
        /// <summary>
        /// 通过主线程修改UI
        /// </summary>
        /// <param name="lbl">修改的Label</param>
        /// <param name="text">修改的值</param>
        private void UpdateLbl(Label lbl, string text)
        {
            if (lbl.InvokeRequired)
            {
                this.Invoke(new Action(() =>
                {
                    lbl.Text = text;
                    //Thread.Sleep(2000);
                    //Console.WriteLine($"当前UpdateLbl线程id{Thread.CurrentThread.ManagedThreadId}");
                }));//交给UI线程去更新
            }
            else
            {
                lbl.Text = text;
            }
        }
        /// <summary>
        /// 结束抽奖，开奖
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void btnEnd_Click(object sender, EventArgs e)
        {

            if (!this.GetLabelList().Contains(""))
            {
                IsBegin = false;
                this.btnEnd.Enabled = false;
                this.btnStart.Enabled = true;

            }
            else
            {
                MessageBox.Show("请慢一点，稍后再试");
            }

        }

        private void ShowNumber()
        {
            MessageBox.Show(string.Format("本期双色球结果是 {0} {1} {2} {3} {4} {5}  {6}",
                  lbRed1.Text, lbRed2.Text, lbRed3.Text, lbRed4.Text, lbRed5.Text, lbRed6.Text, lbBlue.Text));
        }
    }