小编Kri*_*ltz的帖子

我有一个简单的场景,我有一个父类Person,它定义了一个名为"name"的属性,并包含一个"didSet"观察者......

class Person {

    var name: String? {
    didSet {
        println("Person name was set.")
    }
    }

    init() {}
}

我还有一个名为Employee的Person的子类,它为"name"属性添加了自己的"didSet"观察者,以便它可以监视对该属性的更改...

class Employee: Person {

    override var name: String? {
    didSet {
        println("Employee name was set.")
    }
    }

}

当我尝试运行代码时,我得到编译错误,但我无法弄清楚为什么或如何解决它.这是运行这些类的代码......

var person = Person()
person.name = "Bob"

var employee = Employee()
employee.name = "Sally"  // results in "Ambiguous use of 'name'" compile error