--- const_set(name, value)

    ⥸塼 name ǻꤵ줿̾ value Ȥ
    ͤȤvalue ֤ޤ
    Υ⥸塼ˤƤǤˤ̾Ƥ硢
    åϤޤname  Symbol ʸ
    ꤷޤ

