1)URL：http://www.163.com     TYPE:text/html

request header :
cookie :randomNumCookie=0
response header:
Cache-Control:max-age=80   　表示当访问此网页后的80秒内再次访问不会去服务器
2）URL：http://img2.cache.netease.com/cnews/js/ntes_jslib_1.x.js
Cache-Control
max-age=5184000  表示当访问此网页后的60天内再次访问不会去服务器
Age
1   
X_cache
HIT from img-proxy3.img.cnc.bj
 
X-Cache
HIT from squid1-3128, MISS from squid-3-80
X-Cache-Lookup
HIT from squid1-3128:3128, MISS from squid-3-80:80
Via
1.0 squid1-3128:3128 (squid), 1.0 squid-3-80:80 (squid)
 
Cache-Control
public, max-age=31041176