“物件导向”这个名词越来越热门，似乎不懂它的人都好像活在上古世界一 般的过时，但知其然者未必知其所以然，物件的定义为何？物件导向的设计哲学 精髓为何？这些问题并非是人人都能答得上来的。-" Object-oriented" is the term more and more popular, it seems that people do not understand it seems to live in the ancient world in gene