iOS中带有线条和一定角度的NSAttributed文本

let attributedString = NSMutableAttributedString(string: "Hello World")

let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.alignment = .center
paragraphStyle.lineSpacing = 10

let attributes: [NSAttributedString.Key: Any] = [
    .font: UIFont.systemFont(ofSize: 16),
    .foregroundColor: UIColor.red,
    .paragraphStyle: paragraphStyle
]
attributedString.addAttributes(attributes, range: NSRange(location: 0, length: attributedString.length))

let lineStyle = NSUnderlineStyle.single.rawValue | NSUnderlineStyle.patternDot.rawValue
let lineAttributes: [NSAttributedString.Key: Any] = [
    .underlineStyle: lineStyle,
    .underlineColor: UIColor.blue,
    .obliqueness: 0.2
]
attributedString.addAttributes(lineAttributes, range: NSRange(location: 0, length: attributedString.length))