--- eql?(other)

    ĤΥ֥ȤɤȽꤷޤΥ᥽åɤ 
    Hash ǤդĤΥɤȽꤹΤ˻Ȥޤ
    Υ᥽åɤˤ Object#hash [Object/hash] ᥽
    ɤʤФʤޤ

    eql? ΥǥեȤ equal? Ʊ֥
    ƱȽˤʤäƤޤ

