NLog类库使用探索——编程配置

    以编程的方式配置，这是我项目中的，我都不知道为什么使用编程。直接配置不很好吗，估计他也没有研究。直接上步骤和代码：

1. 创建一个LoggingConfiguration对象，用来保存配置信息
2. 至少创建一个输出目标对象
3. 设置该输出目标对象的属性
4. 设置LoggingRule对象，并将其添加到LoggingConfiguration对象的LoggingRules集合中
5. 启用该LoggingConfiguration对象（将LogManager.Configuration设定为该LoggingConfiguration对象即可）

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"); 
    } 
}