结构-它的作用是什么? [英] struct - what is it for?

问题描述

我对 struct 类型有所了解.但是我不明白:这是为了什么?我什么时候使用它?类，简单的值类型和枚举-这就是我所需要的.

I know something about struct type. But I can't understand: what is it for? when have I use it? Classes, simple value-types and enums - that's all that I need.

有什么建议吗?

UPD:请！不要告诉我struct在堆栈中(我知道这一点:).结构是做什么用的?

UPD: PLEASE! Don't tell me that struct is in the stack (I know this :). What struct is for?

推荐答案

如果需要值类型的语义，请选择一个结构.如果需要引用类型的语义，则选择一个类.其他所有问题都是该问题的次要问题.

You choose a struct if you want value-type semantics. You choose a class if you want reference-type semantics. All other concerns are secondary to this one.

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