Nlog

 1 <?xml version="1.0" encoding="utf-8" ?>
 2 <configuration>
 3   <configSections>
 4     <section name="nlog" type="NLog.Config.ConfigSectionHandler, NLog"/>
 5   </configSections>
 6   <nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
 7     <targets>
 8       <target name="file" xsi:type="File" fileName="${shortdate}.txt"
 9               layout="${date:format=HH\:mm\:ss}-${stacktrace}-${message}"/>
10     </targets>
11     <rules>
12       <logger name="*" minlevel="Error" writeTo="file"/>
13     </rules>
14   </nlog>
15 </configuration>

1 string message = "这是一个异常消息";
2 NLog.Logger logger = NLog.LogManager.GetCurrentClassLogger();
3 logger.Error(message);