适合于所有的python framework

写Cookie 

   1 c1=Cookie.SimpleCookie()
   2 c1["user"]="qingfeng"
   3 c1["user"]["max-age"]=3600
   4 c1["user"]["expires"]=3600
   5 os.environ["HTTP_COOKIE"] = str(c1)

读Cookie 

   1 c2=Cookie.SmartCookie(os.environ["HTTP_COOKIE"])
   2 #c2.load(os.environ["HTTP_COOKIE"])
   3 return "<pre>%s</pre>"%(c2["user"].value,)