有个文件夹A  下面有很多个文件夹  每个文件夹下面可以有文件
我的需求是：监控A下面的每个文件夹中是否有没有文件，如果有，则以二进制的方式保存至数据库，然后删除，
老大说  得随时监控每个文件夹下是否有文件，所以得用多线程处理
请问各位  咋个处理啊？给我个思路吧，我第一次用多线程，没得点思路...
谢谢！

可以造一个Windows系统服务程序来实现，前提是服务器上能安装系统服务

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

namespace Thread_FileSystemWatcher
{
    class Program
    {
        private static Thread[] threads;
        private static string[] pPath;
       
        static void Main(string[] args)
        {
            threadsPEIZHI();
            while (Console.Read() != 'q') ;

        }

        static void threadsPEIZHI()
        {
            try
            {
                pPath = new string[2];
                pPath[0] = "c:\\";
                pPath[1] = "e:\\";

                threads = new Thread[pPath.Length];
                for (int i = 0; i <= threads.Length-1; i++)
                {
                    threads[i] = new Thread(Run);
                    threads[i].Name = pPath[i];
                    threads[i].Start();
                    Console.WriteLine(threads[i].Name);
                }
            }
            catch(Exception Ex)
            {
                Console.WriteLine(Ex.Message);
            }
        }

        static void Run()
        {
            Run(Thread.CurrentThread.Name);
        }

        static void Run(string pPath)
        {
            FileSystemWatcher fsw = new FileSystemWatcher(pPath);
            fsw.Filter = "*.*";//监控所有类型，包括子文件夹
            fsw.NotifyFilter = NotifyFilters.DirectoryName | NotifyFilters.LastAccess | NotifyFilters.LastWrite;

            fsw.Changed += new FileSystemEventHandler(OnChanged);
            fsw.Created += new FileSystemEventHandler(OnCreated);
            fsw.Deleted += new FileSystemEventHandler(OnDeleted);
            fsw.Renamed += new RenamedEventHandler(OnRenamed);

            fsw.EnableRaisingEvents = true;//开启监控

        }

        static void OnChanged(object source,FileSystemEventArgs e)
        {
            Console.WriteLine("File: " + e.FullPath + " " + e.ChangeType);
        }

        static void OnCreated(object source,FileSystemEventArgs e)
        {
            Console.WriteLine("File: " + e.FullPath + " " + e.ChangeType);
        }

        static void OnDeleted(object source,FileSystemEventArgs e)
        {
            Console.WriteLine("File: " + e.FullPath + " " + e.ChangeType);
        }

        static void OnRenamed(object source, RenamedEventArgs e)
        {
            Console.WriteLine("File: {0} renamed to {1}", e.OldFullPath, e.FullPath);
        }

    }
}

.

谢谢版主，我按照你的方法是实现了多线程读取文件夹下面的文件
但是有个问题：因为是多线程，所以就出现了同一个文件就可能被多个线程而访问，因而报错：该文件正在被另一进程使用
所以我就想：有什么办法可以让已经在用线程读取了的文件给锁住，以免被其他线程访问，当读取完文件后，再将其解开！O(∩_∩)O谢谢

直接Lock就行了