If the value being assigned is a mutable value class, the method returns a shallow copy of the class, because value classes have copy semantics.

如果分配的值是可变值类，则该方法返回该类的浅表副本，因为值类拥有复制语义。

youdao

When I call this class definition, it calls init, init and I give it an x and a y value.

我说过，当我们，调用这个类的定义的时候，它会去调用。

麻省理工公开课 - 计算机科学及编程导论课程节选

This is saying, that's a class, true or sorry, an instance of a class, and I'm going to get the x value associated with it.

那么两个点是同一个点，我会返回，注意格式，这儿的意思是,它是一个类，噢对不起。

麻省理工公开课 - 计算机科学及编程导论课程节选

And roughly, the second half of the class is going to be value theory.

差不多，课程的第二部分是价值理论。

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Mary Kirby, editor of the Airline Passenger Experience (APEX) magazine and blog, believes the first-class value proposition not only is diminishing, but also that the class will disappear in five years.

CNN: First-class vs. business: Is it worth the extra cost?

Depending on the number of first-class seats available, if a coach takes one over a player, then one player, as determined by the union, is entitled to be paid the difference between the value of the first-class seat and the value of the coach seat he was forced to endure.

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And they add a lot of value to the class.

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