说明：  在VB 6中面向对象的能力还不是很强，但随着VB.NET的出现，其面向对象的能力大大增强。VB.Net不仅为我们提供了新的面向对象的特性，而且它也改变了我们在VB6中实现一些特性时所用的方法。在本教程中我将带你浏览一下这些特性，并将涉及到新的性能以及现有特性的变化。
(In VB 6 in the ability of object-oriented is not very strong, but with the emergence of VB.NET, and its object-oriented ability to greatly enhanced. VB.Net will not only provide us with a new object-oriented features, but it also changed the way we do in VB6 to achieve a number of characteristics of the methodology used. In this tutorial I will take you to glance at these properties, and relates to the performance of new and existing properties change.)