arrays - 如何在 Swift 的插座集合中将所有标签的边框添加到标签数组中？

Question

class ViewController: UIViewController {

    @IBOutlet var labels: [UILabel]!


    override func viewDidLoad() {
        super.viewDidLoad()


        labels[0].layer.borderWidth = 1
        labels[0].layer.borderColor = UIColor.black.cgColor
    }
}

Answer 1

您可以loop通过labels和设置border如下，

labels.forEach { (label) in
    label.layer.borderColor = UIColor.black.cgColor
    label.layer.borderWidth = 1.0
}