How does FileSystemWatcher trigger Multiple Change events?

FileSystemWatcher is recently used to monitor whether the files in a directory have changed. If yes, perform the corresponding operations. However, during the development process, it is found that FileSystemWatcher triggers multiple Created or Changed events after the file is Created or modified. The specific reason is that multiple file system operations are performed during file processing, multiple events are triggered. For more information, see Microsoft's interpretation of FileSystemWatcher: "href =" http://msdn.microsoft.com/en-us/library/xcc1t119 (VS.71 ). aspx "> Troubleshooting FileSystemWatcher Components. In addition, I found the solution to upgrade lidate Multiple FileSystemWatcher Events on the Internet, which is more practical and convenient for quick introduction to the project.