NLog类库使用探索

using NLog; using NLog.Targets; using NLog.Config; using NLog.Win32.Targets;  class Example {     static void Main(string[] args)     {         // Step 1. Create configuration object                  LoggingConfiguration config = new LoggingConfiguration();                  // Step 2. Create targets and add them to the configuration          ColoredConsoleTarget consoleTarget = new ColoredConsoleTarget();         config.AddTarget("console", consoleTarget);                  FileTarget fileTarget = new FileTarget();         config.AddTarget("file", fileTarget);                  // Step 3. Set target properties                  consoleTarget.Layout = "${date:format=HH\\:MM\\:ss} ${logger} ${message}";         fileTarget.FileName = "${basedir}/file.txt";         fileTarget.Layout = "${message}";                  // Step 4. Define rules                  LoggingRule rule1 = new LoggingRule("*", LogLevel.Debug, consoleTarget);         config.LoggingRules.Add(rule1);          LoggingRule rule2 = new LoggingRule("*", LogLevel.Debug, fileTarget);         config.LoggingRules.Add(rule2);                  // Step 5. Activate the configuration          LogManager.Configuration = config;                  // Example usage          Logger logger = LogManager.GetLogger("Example");         logger.Trace("trace log message");         logger.Debug("debug log message");         logger.Info("info log message");         logger.Warn("warn log message");         logger.Error("error log message");         logger.Fatal("fatal log message");     } }