caption always "%{= Bw}%-w%{= kW}%n %t%{= Bw}%+w%{= BW}%? @%u%?%? [%h]%?%-= - %LD %d %LM - %c"add it to your ~/.screenrc 转自 http://zhllg.spaces.live.com/Blog/cns!956A48A2D7ED7265!1729.entry