Encapsulation: a software object is a discrete package containing both the physical properties (data) and the functionality (behavior) that mimics its real-world counterpart.
封装:软件对象就是包含模拟真实世界的对象的物理属性(数据)和功能(行为)的离散包。
2
Now I will give you not only the positions-- as I did here on the x axis - at discrete moments in time-- but I'm going to tell you exactly where the object is at any moment in time.