C 语言中的类模拟（C++编程思想） 在面向对象的语言里面，出现了类的概念。这是编程思想的一种进化。所谓类：是对特定数 据的特定操作的集合体。所以说类包含了两个范畴：数据和操作。而C 语言中的struct 仅仅是数 据的集合。-C language of analog (C Programming thinking), the object-oriented languages inside, a kind of concept. This program is an evolutionary thinking. The so-called categories : data specific to the particular operation of the collectivity. So category contains two areas : data and operation. While the C language struct is just a collection of data.