如何使UIButton中的文本在垂直和水平方向上都绝对居中

let button = UIButton()
let text = "Button Text"
let attributedText = NSMutableAttributedString(string: text)
let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.alignment = .center
paragraphStyle.lineBreakMode = .byWordWrapping
paragraphStyle.lineSpacing = 5 // 行间距
attributedText.addAttribute(.paragraphStyle, value: paragraphStyle, range: NSRange(location: 0, length: attributedText.length))
button.setAttributedTitle(attributedText, for: .normal)

let button = UIButton()
button.setTitle("Button Text", for: .normal)
button.titleLabel?.textAlignment = .center
button.titleLabel?.numberOfLines = 0 // 支持多行文本
button.titleLabel?.lineBreakMode = .byWordWrapping

let button = UIButton()
button.setTitle("Button Text", for: .normal)
button.titleLabel?.textAlignment = .center
button.titleLabel?.numberOfLines = 0
button.titleLabel?.lineBreakMode = .byWordWrapping

button.translatesAutoresizingMaskIntoConstraints = false
NSLayoutConstraint.activate([
    button.centerXAnchor.constraint(equalTo: view.centerXAnchor),
    button.centerYAnchor.constraint(equalTo: view.centerYAnchor)
])