c sharp multithreading

1.  静态方法

using System;
using System.Threading;

namespace PlusThread
{
    class Program
    { 
        static void Main(string[] args)
         {
            //创建无参的线程
            //Thread thread1 = new Thread(new ThreadStart(Thread1));
            Thread thread1 = new Thread( (Thread1));
            thread1.Start();
             Console.ReadLine();
         }
 
         static void Thread1()
          {
              Console.WriteLine("这是无参的方法");
          }
      }
}

2.实例方法

using System;
using System.Threading;

namespace PlusThread
{
    class Program
    { 
        static void Main(string[] args)
        {
            testThread test = new testThread();
            Thread t1 = new Thread(new ThreadStart(test.fun)); 
            t1.Start();
            
            Console.ReadLine();
         }
       
    }

    class testThread
    {
        public void fun()
        {
            Console.WriteLine("这是实例方法");
        }
    }

}

简洁写法：

using System;
using System.Threading;

namespace PlusThread
{
    class Program
    { 
        static void Main(string[] args)
        {
             
            Thread t1 = new Thread(delegate() { Console.WriteLine("匿名委托创建线程"); });
            Thread t2 = new Thread(()=> { Console.WriteLine("lambda创建线程"); Console.WriteLine("hello"); });
            t1.Start();
            t2.Start();
            Console.ReadLine();
         }       
    }
}

3. 带参数实例

using System;
using System.Threading;

namespace PlusThread
{
    class Program
    {
        static void Main(string[] args)
        {             
            Thread t1 = new Thread(new ParameterizedThreadStart(testThread ));
            t1.Start();
            Console.ReadLine();
        }
        static void testThread(object obj)
        {
            Console.WriteLine("带参数实例");
        }
    } 
}

4. 线程基本信息

using System;
using System.Threading;

namespace PlusThread
{
    class Program
    {
        static void Main(string[] args)
        {
            //获取正在运行的线程
            Thread thread = Thread.CurrentThread;
            //设置线程的名字
            thread.Name = "主线程";
            //获取当前线程的唯一标识符
            int id = thread.ManagedThreadId;
            //获取当前线程的状态
            ThreadState state = thread.ThreadState;
            //获取当前线程的优先级
            ThreadPriority priority = thread.Priority;
            string strMsg = string.Format("Thread ID:{0}
" + "Thread Name:{1}
" +
                "Thread State:{2}
" + "Thread Priority:{3}
", id, thread.Name,
                state, priority);

            Console.WriteLine(strMsg);

            Console.ReadKey();
        }
    } 
}

5. 前后台线程

using System;
using System.Threading;

namespace PlusThread
{
    class Program
    {
        static void Main(string[] args)
        {
            BgTest bg = new BgTest(10);
            Thread fThread = new Thread(new ThreadStart(bg.Run));
            fThread.Name = "前台线程";

            BgTest bg1 = new BgTest(20);
            Thread bThread = new Thread(new ThreadStart(bg1.Run));
            bThread.Name = "后台线程";
            bThread.IsBackground = true;

            fThread.Start();
            bThread.Start();
            Console.ReadLine();
        }
    }

    class BgTest
    {
        private int Count;
        public BgTest(int count)
        {
            this.Count = count;
        }
        public void Run()
        {
            string threadName = Thread.CurrentThread.Name;
            for (int i = 0; i < Count; i++)
            {
                Console.WriteLine("{0}计数：{1}", threadName, i.ToString());
                Thread.Sleep(1000);
            }
            Console.WriteLine("{0}完成计数", threadName);
        }
    }
}

6. 跨线程访问控件

6.1 

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;
using System.Threading;
namespace WindowsFormsApp1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
            Control.CheckForIllegalCrossThreadCalls = false;
        }

        private void button1_Click(object sender, EventArgs e)
        {
            Thread t = new Thread(test);
            t.Start();
            Console.ReadLine();

            void test()
            {
                for(int i=0;i<10;i++)
                {
                    textBox1.Text = i.ToString();
                    Thread.Sleep(200);
                }
            }
        }
    }
}

6.2 

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;
using System.Threading;
namespace WindowsFormsApp1
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }
        private delegate void setCallBack(int value);
        private setCallBack setcb;
        private void button1_Click(object sender, EventArgs e)
        {
            setcb = new setCallBack(setNum);
            Thread t = new Thread (test);
            t.Start();
            void test()
            {
                for(int i=0;i<10;i++)
                {
                    textBox1.Invoke(setcb, i);
                }
            }

            void setNum(int i)
            {
                textBox1.Text = i.ToString();
                Thread.Sleep(500);
            }
        }
    }
}

7. 

参考：

https://www.cnblogs.com/dotnet261010/p/6159984.html