怎么获取百度贴吧的BDUSS参数

BAIDUID=D63B0BA8541ADEC978F73AE47329510F:FG=1; BAIDU_WISE_UID=wapp_1405604462627_998; TIEBA_USERTYPE=a6799c75c44d78adedebb0be; bdshare_firstime=1405076846888; Hm_lvt_287705c8d9e2073d13275b18dbd746dc=1405076852,1405603884,1405604679; SEENKW=%E9%AD%94%E5%85%BD%E4%B8%96%E7%95%8C; IS_NEW_USER=43278e028742727bc309f16e; TIEBAUID=303f787d0df1dca6e7153bb6; GET_TOPIC=448275948
为什么我获得的返回是这个