data class

基本解释

Understanding generated SOAP and data classes
理解生成的 SOAP 和数据类
If this is the case, then you should proceed to the next section, Understanding generated SOAP and data classes .
如果是这种情况，那么您应该继续下一节理解生成的 SOAP 和数据类。
Say, you parse a database or an XML file and generate data classes. Tens of classes, hundreds of properties, all fairly generic, boilerplate stuff.
假设你解析一个数据库或者一个XML文件，然后生成了数据类，结果你会发现有数十个类、几百个属性以及一大堆泛型和模板文件等。

Now these ideas of classes, object-oriented programming, data abstraction, are about 40 years old, they're not new ideas.
面向对象编程的概念，数据抽象的概念，都是40年前就有的老东西了。
麻省理工公开课 - 计算机科学及编程导论课程节选

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