《四大发明之活字印刷——面向对象思想的胜利》，文章来源于http://www.cnblogs.com/cj723/archive/2006/08/16/478621.html 通过活字印刷讲解面向对象思想的优越性，指导面向对象的程序设计。-"Four great inventions of moveable type- object-oriented thinking of the victory, the article comes from http://www.cnblogs.com/cj723/archive/2006/08/16/478621.html moveable type to explain object-orientedthe superiority of ideas to guide the design of object-oriented programming.