//處理要防采集的字段       $bodylen = strlen($body) - 1;       $prepos = 0;       for($i=0;$i<=$bodylen;$i++)       {           if($i+2 >= $bodylen || $i<50)           {               $reString .= $body[$i];           }           else          {               $ntag = @strtolower($body[$i].$body[$i+1].$body[$i+2]);               if($ntag=='</p' || ($ntag=='<br' && $i-$prepos>$maxpos) )               {                   $dd = mt_rand(1,4);                   $emname = $rndem[$dd];                   $dd = mt_rand(1,$totalitem);                   $rnstr = $rndstring[$dd];                   if($emname!='font')                   {                       $rnstr = " <$emname class='$rndstyleName'>$rnstr</$emname> ";                   }                   else                  {                       $rnstr = " <font color='$fontColor'>$rnstr</font> ";                   }                   $reString .= $rnstr.$body[$i];                   $prepos = $i;               }               else              {                   $reString .= $body[$i];               }           }       }       return $reString;   }//函數(shù)結(jié)束