CoreText中的行间距和段落对齐方式

let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.lineSpacing = 10 // 设置行间距为10
let attributes: [NSAttributedString.Key: Any] = [
    .paragraphStyle: paragraphStyle
]
let attributedString = NSAttributedString(string: "这是一段文本", attributes: attributes)

let paragraphStyle = NSMutableParagraphStyle()
paragraphStyle.alignment = .center // 设置段落对齐方式为居中
let attributes: [NSAttributedString.Key: Any] = [
    .paragraphStyle: paragraphStyle
]
let attributedString = NSAttributedString(string: "这是一段文本", attributes: attributes)