说明：  使用NLog实现一个简单的日志记录(包含源代码) 目前比较流行.net的Log框架是log4net，不过个人觉得log4net配置比较繁琐，这里我向大家推荐一个比较简单实用的log框架：NLog。 有兴趣的朋友可以到http://www.nlog-project.org/下载源代码和demo，这里我就不详细介绍了。 我尝试做了一个简单的demo，目的是实现一个简单的日志记录, 愿跟大家一起分享
(NLog the realization of the use of a simple log records (including source code) is currently more popular. Net framework is the Log of log4net, but personally feel that the relatively cumbersome to configure log4net, here I would like to recommend a relatively simple and practical log framework: NLog. Friends who are interested can go to download http://www.nlog-project.org/ source code and demo, I do not here described in detail. I am trying to do a simple demo, aimed at achieving a simple log records, would like to share with you)