代码：

using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading;using System.Threading.Tasks;namespace Utils{    /// 
    /// 线程工具类    /// 
    public class ThreadUtil    {        /// 
        /// 使用的逻辑处理器数        /// 
        private static int _ProcessorCount;        private static Semaphore _semaphore;        private static List
      
        _TaskList = new List
       
        ();        private static object _lock = new object();        static ThreadUtil()        {            _ProcessorCount = Environment.ProcessorCount * 2 / 4; //使用的逻辑处理器数            if (_ProcessorCount < 1) _ProcessorCount = 1;            _semaphore = new Semaphore(_ProcessorCount, _ProcessorCount);        }        public static void Run(Action
        
       
      

使用方法：

ThreadUtil.Run((obj) =>{    //todo},arg,(ex)=>{    //错误处理});