把下面的开镜打完的切换匕首的,换成沙鹰

alias crosshair1 "net_graph 2; net_graphpos 2; graphheight 270; net_graphwidth -8"
alias crosshair0 "net_graph 0; net_graphpos 0; graphheight 0; net_graphwidth 0"

alias +fire1 "+attack2; +attack" //开镜狙击
alias -fire1 "-attack2; -attack; weapon_knife; lastinv" //开镜狙击.匕首切换
alias +fire0 "+attack" //普通射击
alias -fire0 "-attack" //普通射击