c# 判断文件是否发生了变化
2017-12-04 17:08 狼人:-) 阅读(3676) 评论(0) 收藏 举报你这个是想文件发生改变时,自动调用一个函数,做出一些操作呢。
还是有一个按钮(或者别的什么),你去点击一下,然后检测下一个文件,是否发生了变化?
下面的代码,监控d盘下的所有.txt文件的修改
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static void TestFileSystemWatcher() { FileSystemWatcher watcher = new FileSystemWatcher(); try { watcher.Path = @"d:\Test"; } catch (ArgumentException e) { Console.WriteLine(e.Message); return; } //设置监视文件的哪些修改行为 watcher.NotifyFilter = NotifyFilters.LastAccess | NotifyFilters.LastWrite | NotifyFilters.FileName | NotifyFilters.DirectoryName; watcher.Filter = "*.txt"; watcher.Changed += new FileSystemEventHandler(OnChanged); watcher.Created += new FileSystemEventHandler(OnChanged); watcher.Deleted += new FileSystemEventHandler(OnChanged); watcher.Renamed += new RenamedEventHandler(OnRenamed); watcher.EnableRaisingEvents = true; Console.WriteLine(@"Press 'q' to quit app."); while (Console.Read() != 'q'); } static void OnChanged(object source, FileSystemEventArgs e) { Console.WriteLine("File:{0} {1}!", e.FullPath, e.ChangeType); } static void OnRenamed(object source, RenamedEventArgs e) { Console.WriteLine("File:{0} renamed to\n{1}", e.OldFullPath, e.FullPath); } |
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