http://xml.jz123.cn/xml_syntax.asp.htm
http://blog.csdn.net/dxdxsmy/article/details/7107303
http://blog.csdn.net/xuyanbo2008/article/category/1119513 http://www.nongnu.org/quagga/
https://www.evernote.com/pub/mengyingchina/simshell#st=p&n=e1149c4a-6e23-4c3d-9fdd-b201601bf34d
原文：http://www.cnblogs.com/3me-linux/p/4772289.html