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#!/usr/bin/ruby
# -*- coding: UTF-8 -*-
$age =  5
case $age
when 0 .. 2
    puts "嬰兒"
when 3 .. 6
    puts "小孩"
when 7 .. 12
    puts "child"
when 13 .. 18
    puts "少年"
else
    puts "其他年齡段的"
end
 
 
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