我是属于牛的女孩,我不是迷信的人,但我认为有些东西是可靠的,不可靠的,所以我平时对星座、动物、算卦感兴趣,我经常关注星座、干支等新闻,每个动物都知道一年中运势不好几个月,本月工作、学习、生活都要小心,
I am wondering whether there exists any declarative language for arbitrarily describing the format and semantics of a data structure, that can be compiled to a specific implementation of that structur