http://www.cnblogs.com/Blog-Yang/archive/2013/08/16/3261284.html
http://www.kuqin.com/webpagedesign/20120812/324415.html
http://www.cnblogs.com/Blog-Yang/p/3261880.html
http://www.cnblogs.com/gbin1/p/3259343.html
http://www.cnblogs.com/smiletofulture/archive/2012/08/24/2653861.html
http://www.cnblogs.com/yuyii/archive/2008/10/16/1312238.html
http://book.douban.com/subject/4124141/
http://www.websiteoptimization.com/secrets/advanced/9-7-content-expiration-IIS.html
http://www.iis.net/configreference/system.webserver/staticcontent/clientcache
http://www.cnblogs.com/yuyii/archive/2008/10/16/1312238.html