自由的力量,自由的生活。
histogram = Hash.new(0) ##給hash表設置默然值為0 histogram['key1'] histogram['key1'] = histogram['key1'] + 1 histogram['key1']########################################gets 從命令行出入的文件名得到的文件的每一行文本。while line = gets puts line.downcase ##downcase全部轉換成小寫end
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