给定类Obj,
class Obj: NSObject {
var x = "x"
}
和它的子类Obj1,你如何更改var x的默认值？
简单地设置一个新的值将是最有意义的,但似乎错误出来…
class Obj1: Obj {
var x = "y"
}
❗️ Cannot override with a stored property ‘x’
