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一,Array 数组, 是一系列元素的有序集合,
a = ["first" "second" "third"] a = ["first", "second", "third"] puts "the kind of a is :" , a.class, a.length puts a puts a[0..2] 二, hash 哈希表, a = {"first" => "1", "second"=> "2", "third"=> "3"} puts a puts a.length puts a["first"] puts a["first"]="dfd" puts a["first"] 三, number , =end num = 81 2.times do puts "#{num.class}: #{num}" num *= num end puts 020 /八进制 puts 0x20 /十六进制 puts 123_456_789 /下滑线会被忽略转载地址:http://drcci.baihongyu.com/