字）

var&nbsp；is_pc&nbsp；=&nbsp；is_pc（）；var&nbsp；channel_type&nbsp；=&nbsp；1；if（&nbsp；！is_pc）｛ if（&nbsp；channel_type&nbsp；==&nbsp；1）｛ BAIDU_CLB_M_fillSlot（&quot；629485&quot；）； ｝else&nbsp；if（&nbsp；channel_type&nbsp；==&nbsp；2）｛ BAIDU_CLB_M_fillSlot（&quot；6