UILabel是否从HTML文本中检测userName并更改其字体颜色？

// 导入第三方库DTCoreText
import DTCoreText

// 假设HTML文本存储在htmlString变量中
let htmlString = "<p>Hello <span class='username'>John</span>!</p>"

// 将HTML文本转换为NSAttributedString对象
let attributedString = NSAttributedString(htmlData: htmlString.data(using: .utf8), options: [DTUseiOS6Attributes: true], documentAttributes: nil)

// 检测userName并添加自定义属性
let mutableAttributedString = NSMutableAttributedString(attributedString: attributedString)
let regex = try! NSRegularExpression(pattern: "<span class='username'>(.*?)</span>", options: [])
let matches = regex.matches(in: htmlString, options: [], range: NSRange(location: 0, length: htmlString.utf16.count))
for match in matches {
    let range = match.range(at: 1)
    mutableAttributedString.addAttribute(.foregroundColor, value: UIColor.red, range: range)
}

// 创建UITextView并设置attributedText
let textView = UITextView(frame: CGRect(x: 0, y: 0, width: 200, height: 100))
textView.attributedText = mutableAttributedString