求解！这段脚本如何配合才能用起来！！

kuyue163

:foreach i in=[/interface pppoe-client find disable=no] do={
   :local pppint [/interface pppoe-client get $i name]
   :local adsldyip [/ip address get [/ip address find actual-interface=$pppint comm=""] address]
   :local adslloip [/ip address get [/ip address find comm=$pppint] address]
   :if ([:typeof $adsldyip] = nil ) do={
       /interface pppoe-client monitor $pppint once do={
           :if (!($status = "connected")) do={
               :log info ($pppint . ": dialing error!")
            }
        }
     } else={
       :if ($adsldyip = $adslloip) do={  
          :log info ($pppint . ":  No change")
       } else={
          :local adslipm [:pick $adsldyip 0 [:find $adsldyip "/"]]
          :log info [/ip add set [/ip add find comm=$pppint ] add=$adsldyip network=$adslipm bro=$adslipm]
          :log info [/ip route set [/ip route find comm=$pppint] gateway=$adslipm]
         }        
      }
   }

lsdeng

干嘛用的？