C#-----创建线程的多种方式

   1.Thread

     Thread创建和控制线程，设置其优先级并获取其状态

1.1 不带参数

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;

namespace ConsoleApp5
{
    class Program
    {
        static void Main(string[] args)
        {
            Thread thread = new Thread(new ThreadStart(CreateThread));
            thread.Name = "线程一";
            thread.IsBackground = true;
            thread.Start();
        }

        static void CreateThread()
        {
            for (int i=1;i<=20;i++)
            {
                Console.WriteLine(Thread.CurrentThread.Name+":"+i);
            }
        }
    }
}

1.2 带参数ParameterizedThreadStart

 

using System;
using System.Threading;

namespace ConsoleApp5
{
    class Program
    {
        static void Main(string[] args)
        {
            Thread thread = new Thread(new ParameterizedThreadStart(CreateThread));
            thread.IsBackground = true;
            thread.Start("线程二");
            Console.ReadLine();
        }

        static void CreateThread(Object threadName)
        {
            Thread.CurrentThread.Name = threadName.ToString();
            for (int i = 1; i <= 20; i++)
            {
                Console.WriteLine(Thread.CurrentThread.Name + ":" + i);
            }
        }
    }
}

   2.Task

    Task类的表示单个操作不会返回一个值，通常以异步方式执行

2.1 直接New创建

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace ConsoleApp5
{
    class Program
    {
        static void Main(string[] args)
        {
            Task task = new Task(() =>
            {
                Console.WriteLine("可以直接写代码，也可以调用方法");
                CreateTask();
            });
            task.Start();
            Console.ReadLine();
        }

        static void CreateTask()
        {
            Thread.CurrentThread.Name = "线程一";
            for (int i = 1; i <= 20; i++)
            {
                Console.WriteLine(Thread.CurrentThread.Name + ":" + i);
            }
        }
    }
}

 2.2 使用Factory工厂创建

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace ConsoleApp5
{
    class Program
    {
        static void Main(string[] args)
        {
            //Factory提供对用于创建Task的工厂方法的访问
            Task.Factory.StartNew(() =>
            {
                Console.WriteLine("可以直接写代码，也可以调用方法");
                CreateTask();
            });
            Console.ReadLine();
        }

        static void CreateTask()
        {
            Thread.CurrentThread.Name = "线程一";
            for (int i = 1; i <= 20; i++)
            {
                Console.WriteLine(Thread.CurrentThread.Name + ":" + i);
            }
        }
    }
}

 2.3 使用Run方法

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Threading.Tasks;

namespace ConsoleApp5
{
    class Program
    {
        static void Main(string[] args)
        {
            //将在线程池上运行的指定工作排队，并返回代表该工作的Task对象
            Task.Run(() =>
            {
                Console.WriteLine("可以直接写代码，也可以调用方法");
                CreateTask();
            });
            Console.ReadLine();
        }

        static void CreateTask()
        {
            Thread.CurrentThread.Name = "线程一";
            for (int i = 1; i <= 20; i++)
            {
                Console.WriteLine(Thread.CurrentThread.Name + ":" + i);
            }
        }
    }
}