英文:
Why you not use an open keyword with structs in swift?
问题
到处都在谈论只有 open/public 关键字的 classes，所以如果 Swift 的专家能够提供带有示例的令人满意的答案，那将是很棒的。
例如：我们可以在类中这样做，但在结构体中不要这样做！
open class Animal {
var name: String
var age: Int
init(name: String, age: Int) {
self.name = name
self.age = age
}
}
英文:
everywhere talk about only classes with open/public keyword so it would be great if swift experts can provide satisfying answers with an example.
for eg: we can do this in class but don't do it in the struct!
open class Animal {
var name: String
var age: Int
init(name: String, age: Int) {
self.name = name
self.age = age
}
}
答案1
得分: 3
open与结构体无关，因为它们不具有继承性。public与模块外部的可见性相关，因此适用于所有类型。
英文:
open is irrelevant to structs, since they don't have inheritance. public relates to visibility from outside the module, so it is relevant to all types.
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