并行

 

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

namespace MoreThread
{
    internal class Program
    {
        private static void Main(string[] args)
        {
            TestParallelFor t1 = new TestParallelFor();
            t1.DoSomeThing();
            TestParallelForEach t2 = new TestParallelForEach();
            t2.DoSomeThing();
            Console.ReadKey();
        }
    }

    public interface ITestThread
    {
        void DoSomeThing();
    }

    public class TestParallelFor : ITestThread
    {
        private int GetData(int i)
        {
            Thread.Sleep(1000);
            return i;
        }

        public void DoSomeThing()
        {
            DateTime dt = DateTime.Now;
            Console.WriteLine("开始执行时间：" + DateTime.Now.ToString());
            List<int> list = new List<int>();
            System.Threading.Tasks.Parallel.For(0, 10, (i) =>
            {
                list.Add(GetData(i));
            });
            Console.WriteLine("TestParallelFor-" + (DateTime.Now - dt).TotalMilliseconds.ToString() + "毫秒");
            Console.WriteLine("结束执行时间：" + DateTime.Now.ToString());
            list.ForEach(x =>
            {
                Console.WriteLine(x);
            });
        }
    }

    public class TestParallelForEach : ITestThread
    {
        private int GetData(int i)
        {
            Console.WriteLine("I=" + i.ToString());
            Thread.Sleep(1000);
            return i;
        }

        public void DoSomeThing()
        {
            DateTime dt = DateTime.Now;
            Console.WriteLine("开始执行时间：" + DateTime.Now.ToString());
            List<int> list = new List<int>();
            List<int> list2 = new List<int>();
            for (int i = 0; i < 10; i++)
            {
                list2.Add(i);
            }
            System.Threading.Tasks.Parallel.ForEach(list2, (i) =>
            {
                list.Add(GetData(i));
            });
            list.ForEach(x =>
            {
                Console.WriteLine(x);
            });
            Console.WriteLine("TestParallelForEach-" + (DateTime.Now - dt).TotalMilliseconds.ToString() + "毫秒");
            Console.WriteLine("结束执行时间：" + DateTime.Now.ToString());
        }
    }
}