这部分是我练习的code
words = ['demo', 'none', 'tied', 'evil', 'dome', 'mode', 'live',
'fowl', 'veil', 'wolf', 'diet', 'vile', 'edit', 'tide',
'flow', 'neon']
result = {}
words.each do |word|
key = word.split('').sort.join
if result.has_key?(key)
result[key].push(word)
else
result[key] = [word]
end
end
result.each do |k, v|
puts "