步骤1：
NLog-v2.0.0.2000下载地址
http://download.csdn.net/detail/hezikui1987/5099282
安装NLog-v2.0.0.2000
NLog使用帮助文档下载地址
http://download.csdn.net/detail/hezikui1987/5099374
步骤2：
添加NLog引用，右键单击选择添加引用
在.NET中选择NLog for Silverlight 4.0
步骤3：
using NLog;
using NLog.Targets;
using NLog.Config;
using NLog.Layouts;
在App.xml.cs中配置如下
private void Application_Startup(object sender, StartupEventArgs e) { InitializeNLog(); this.RootVisual = new MainPage(); } private void InitializeNLog() { SimpleConfigurator.ConfigureForTargetLogging( new FileTarget() { FileName = "${specialfolder:MyDocuments}/log.${shortdate}.txt", Layout = new CsvLayout() { Columns = { new CsvColumn("Time", "${longdate}"), new CsvColumn("Level", "${level}"), new CsvColumn("Lessage", "${message}"), new CsvColumn("Logger", "${logger}"), }, }