韩半仙

摘要： 1. values represent data.variables contain values:$number = 42;variable valueperl provides several types of values:integers/arrays/strings/hashes/scalars/referenceperl used context to determine type.2. the scope of keyword: my#!/usr/bin/perl#use strict;use warnings;main(@ARGV);my $decimal = 23456... 阅读全文