iOS 15.5, Xcode 13.31, Swift 5, UIKit 환경에서 진행했습니다. let attributedString = NSMutableAttributedString.init(string: "Apply UnderLining") attributedString.addAttribute(NSAttributedString.Key.underlineStyle, value: 1, range: NSRange.init(location: 0, length: attributedString.length)) label.attributedText = attributedString
