摘要：
经常我们会碰到如果某个文件被更改，能够做出对应的操作。public class FileWatch{ public static FileSystemWatcher _fileWatcher; private static readonly object _lockObj = new object(); private static void SetWatch(string path) { if(_fileWatcher==null) { lock(_lockObj) { if(_fileWatcher==null) { ... 阅读全文