$#temp

一段小代码，帮忙看看，例如读取一行：       D000006        C23.888.646.100.200        C23.888.821.030.249
不太明白foreach语句中的$#temp是什么意思？ 在这里是2，为什么不是3   

             while ($line = <TREEIN>){
                                        chomp $line;
                                @temp = split(/\s/, $line);
                                foreach my $node (1 .. $#temp) {
                                        $temp{D000006} .= "\t$temp[$node]" if ($temp[$node] =~/(A|C)/);
                                }
                                undef @temp;
                                undef $id;
                        }
                       
        }#while

数组的下标.

Sometimes you need to find out the last element index in an array. For the array of rocks that we've been using, the last element index is $#rocks.

That's not the same as the number of elements because there's an element number zero.

• Blame this ugly syntax on the C shell. Fortunately, you don't have to look at this often in the real world.
  
  
  建议 lz 去读读 learning perl 然后再看代码

lz的信誉积分为啥为-5？

lz的信誉积分为啥为-5？ [/quote]