class的继承

2018-11-01 本文已影响0人丢了理想

superVC:sSuperVC

 override func viewDidLoad() {

        super.viewDidLoad()

        setupUI()

       }

    override func setupUI() {

        print(123)

    }

subVC:superVC

override func viewDidLoad() {

        super.viewDidLoad()

    }

    override func setupUI() {

        print(456)

    }

输出456，因为创建的是子类，无论在哪里call func，都是self.call除非声明super.call