static ILog _log = null; static object lockHelper = new object(); private ILog GetLog() { if (null == _log) { lock (lockHelper) { if (null == _log) { StackTrace stackTrace = new StackTrace(this._skipFrames); StackFrame stackFrame = stackTrace.GetFrame(0); MethodBase methodBase = stackFrame.GetMethod(); // ApplicationRollingFile在.config文件中配置的名称 _log = LogManager.GetLogger("ApplicationRollingFile"); Task.Run(()=> { var apps = _log.Logger.Repository.GetAppenders(); if (apps.Length <= 0) { return; } var now = DateTime.UtcNow.AddDays(-10); foreach (var item in apps) { if (item is RollingFileAppender) { RollingFileAppender roll = item as RollingFileAppender; var dir = Path.GetDirectoryName(roll.File); var files = Directory.GetFiles(dir, "*.txt"); //var sample = "log.txt2017-10-23.txt"; foreach (var filePath in files) { var file = new FileInfo(filePath); if (file.CreationTimeUtc < now) { try { file.Delete(); } catch (Exception) { } } } } } }); } } } return _log; } 