如何根据Swift中的文本计算UILabel的大小

import UIKit

func calculateLabelSize(text: String, font: UIFont, maxWidth: CGFloat) -> CGSize {
    let nsText = NSString(string: text)
    let size = CGSize(width: maxWidth, height: CGFloat.greatestFiniteMagnitude)
    let options: NSStringDrawingOptions = [.usesLineFragmentOrigin, .usesFontLeading]
    let attributes = [NSAttributedString.Key.font: font]
    
    let boundingRect = nsText.boundingRect(with: size, options: options, attributes: attributes, context: nil)
    return boundingRect.size
}

let text = "Hello, World!"
let font = UIFont.systemFont(ofSize: 17)
let maxWidth: CGFloat = 200

let labelSize = calculateLabelSize(text: text, font: font, maxWidth: maxWidth)
print("Label size: \(labelSize)")