How to add a blank line in the log file using log4net?

I used RollingFileAppender. And I want add a blank line to the log when my program launches. How to do that? Thanks.

UNIX, get environment variable

I have a ridiculous question due to a ridiculous problem. Normally if I want to get the contents of an environment variable in UNIX shell, I can do

《何故 何苦 何必》MP3歌词-彭家丽？

何故开发者_StackOverflow社区 何苦 何必 彭家丽 专辑：Angela Pang 语种： 粤语 流派：Pop

Chrome pre-fetching of pages in a domain

I read in a source that chrome, when it goes to a domain, it prefetches most of the pages that might be used for that domain. As a result of this, I\'m facing a problem. I have a greasemonkey script w

为什么这么多年来 凡跟我有过节的人 都诡谲地非死即残？？

简单聊聊Go语言里面的闭包

目录1、什么是闭包1.1 前提知识铺垫1.1.2 函数作用域1.1.3 作用域的继承关系1.2 闭包的定义1.3 闭包的写法2、闭包的好处与坏处2.1 好处2.2 坏处3、闭包怎么实现的4、浅聊一下4.1 Java 支不支持闭包4.2 函数式编程的前