Javascript 面向对象编程（一）：封装

http://www.ruanyifeng.com/blog/2010/05/object-oriented_javascript_encapsulation.html

Javascript面向对象编程（二）：构造函数的继承

http://www.ruanyifeng.com/blog/2010/05/object-oriented_javascript_inheritance.html

Javascript面向对象编程（三）：非构造函数的继承

http://www.ruanyifeng.com/blog/2010/05/object-oriented_javascript_inheritance_continued.html

Javascript 面向对象编程