多线程的使用

效果：

1.要求?

Label_Test1 数字不停的自增，到10的时候停止，然后 Label_Test2 开始自增，到30的时候停止，Label_Test3 则不停的自增。用线程的方式实现。

2.代码

新建一个Winform项目，界面如下，就四个控件

再新建一个脚本Test

using System;
using System.Threading;

namespace WindowsFormsApp1
{
    internal class Test
    {
        #region 字段
        
        private Thread Thread1;
        private Thread Thread2;
        private Thread Thread3;
        private bool ThreadIsRuning = false;

        public Action<int> Event_CallBack1;
        public Action<int> Event_CallBack2;
        public Action<int> Event_CallBack3;

        private int value1 = 0;
        public int Value1
        {
            get { return value1; }
            set { value1 = value; }
        }

        private int value2 = 0;
        public int Value2
        {
            get { return value2; }
            set { value2 = value; }
        }
        private int value3 = 0;
        public int Value3
        {
            get { return value3; }
            set { value3 = value; }
        }

        #endregion


        private void Init()
        {
            Thread1 = new Thread(Function1);
            Thread1.IsBackground = true;
            Thread2 = new Thread(Function2);
            Thread2.IsBackground = true;
            Thread3 = new Thread(Function3);
            Thread3.IsBackground = true;
        }

        public void StartThread()
        {
            if(ThreadIsRuning) return;

            Thread1.Start();
            Thread2.Start();
            Thread3.Start();
            ThreadIsRuning = true;
        }

        public void StopAllThread()
        {
            Thread1.Abort();
            Thread2.Abort();
            Thread3.Abort();
        }

        private void Function1()
        {
            while (true)
            {
                Thread.Sleep(500);
                Value1++;
                if(Event_CallBack1 != null)
                    Event_CallBack1(Value1);
            }
        }

        private void Function2()
        {
            bool isEnd = false;
            while (true)
            {
                if (Value1 == 10)
                {
                    Thread1.Abort();
                    isEnd = true;
                    break;
                }
            }
            while (isEnd)
            {
                Thread.Sleep(500);
                Value2++;
                if(Event_CallBack2 != null)
                    Event_CallBack2(Value2);
                if(value2 >= 30)
                {
                    Thread2.Abort();
                    break;
                }
            }
        }

        private void Function3()
        {
            while (true)
            {
                Thread.Sleep(500);
                Value3++;
                if(Event_CallBack3 != null)
                    Event_CallBack3(Value3);
            }
        }

        public Test()
        {
            Init();
        }
    }
}

脚本?Form1

using System;
using System.Windows.Forms;

namespace WindowsFormsApp1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private Test MyTest;

        private void Form1_Load(object sender, EventArgs e)
        {
            MyTest = new Test();
            MyTest.Event_CallBack1 = Callback1;
            MyTest.Event_CallBack2 = Callback2;
            MyTest.Event_CallBack3 = Callback3;
        }

        private void Form1_FormClosing(object sender, FormClosingEventArgs e)
        {
            MyTest.StopAllThread();
        }

        /// <summary>
        /// 按钮点击事件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void Button_Test_Click(object sender, EventArgs e)
        {
            MyTest.StartThread();
        }

        private void Callback1(int value)
        {
            Console.WriteLine("回调1：" + value);

            if (this.InvokeRequired)
            {
                this.Invoke(new MethodInvoker(delegate
                {
                    Label_Test1.Text = value.ToString();
                }));
            }
            else
            {
                Label_Test1.Text = value.ToString();
            }
        }

        private void Callback2(int value)
        {
            Console.WriteLine("回调2：" + value);

            if (this.InvokeRequired)
            {
                this.Invoke(new MethodInvoker(delegate
                {
                    Label_Test2.Text = value.ToString();
                }));
            }
            else
            {
                Label_Test2.Text = value.ToString();
            }
        }

        private void Callback3(int value)
        {
            Console.WriteLine("回调3：" + value);

            if (this.InvokeRequired)
            {
                this.Invoke(new MethodInvoker(delegate
                {
                    Label_Test3.Text = value.ToString();
                }));
            }
            else
            {
                Label_Test3.Text = value.ToString();
            }
        }
    }
}