小编Gil*_*ist的帖子

var soundPoolLabel: UILabel {
  let label = UILabel(frame: CGRect(x: 20, y: 90, width: 540, height: 94))
  label.text = "SoundPool"
  label.textColor = UIColor.black
  label.font = UIFont(name: "Bodoni 72 Oldstyle", size: 80)
  let attributedString = NSMutableAttributedString(string: label.text!)
  attributedString.addAttribute(kCTKernAttributeName as NSAttributedStringKey, value: CGFloat(1.0), range: NSRange(location: 0, length: attributedString.length))
  label.attributedText = attributedString
  return label
}

soundPoolLabel.translatesAutoresizingMaskIntoConstraints = false
let topConstraint = soundPoolLabel.topAnchor.constraint(equalTo: view.topAnchor, constant: 90)
NSLayoutConstraint.activate([topConstraint])