UIImage:如何获取网站标签图标

let url = URL(string: "https://example.com")!

// 创建一个URLSession
let session = URLSession.shared

// 创建一个dataTask进行网络请求
let dataTask = session.dataTask(with: url) { (data, response, error) in
    if let error = error {
        print("请求失败: \(error.localizedDescription)")
        return
    }

    if let data = data {
        // 处理接收到的数据
        do {
            // 解析HTML以获取标签图标
            if let html = String(data: data, encoding: .utf8) {
                let regex = try NSRegularExpression(pattern: "<img[^>]+src=\"([^\"]+)\"", options: [])
                if let match = regex.firstMatch(in: html, range: NSRange(location: 0, length: html.utf8.count)) {
                    let url = URL(string: match.group(1))!
                    let image = UIImage(data: Data(contentsOf: url))
                    DispatchQueue.main.async {
                        self.imageView.image = image
                    }
                }
            }
        } catch {
            print("解析HTML失败: \(error.localizedDescription)")
        }
    }
}

// 开始数据任务
dataTask.resume()