【C#】监测文件改变类

using System.IO;

//首先实例化一个对象
FileSystemWatcher watcher = new FileSystemWatcher();
//设置监听路径
watcher.Path = Path.Combine(System.Environment.CurrentDirectory, @"eventTest\");
//只监听这一个文件，当礼品目录修改完毕后对此文件进行修改，由此触发监听事件 
watcher.Filter = "EventConfig.ini";
watcher.NotifyFilter = NotifyFilters.LastWrite;
//启用监听，如果不设置则不会触发事件
watcher.EnableRaisingEvents = true;
//设置监听触发事件
watcher.Changed += new FileSystemEventHandler(watcher_Changed);

private void watcher_Changed(object sender, FileSystemEventArgs e)
{
    WatchingEvent(EventConfigHelper.instance.WatchingNum);
}