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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。
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Now when the only types we're dealing with are the built-in types, the ones that came with the programming language, that doesn't really matter.
现在我们对付的数据类型,只有内置的数据类型,也就是编程语言固有的类型。
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A low-level language, we used to call this assembly programming, you're down at the level of, your primitives are literally moving pieces of data from one location of memory to another, through a very simple operation.
一个低级的语言，我们曾经将其称为假设编程，你们只是处于用基本要素，把一些数据碎片,从记忆存储器的一个地方，通过简单的操作来转到另外一个地方。
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And we're going to use this object-oriented programming, typically to create something called data abstractions.
在接下来的几天,你会明白我们这里说的具体含义,它的一个同义词。
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What we're going to see with programming language is that we're going to use higher-level abstracts.
我们将要看到的是,我们将会在高端的阶段中使用编程语言。
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