如何在iOS中查找“近场通信标签标识符”

import CoreNFC

class NFCReaderViewController: UIViewController, NFCTagReaderSessionDelegate {
    var nfcSession: NFCTagReaderSession?
    
    override func viewDidLoad() {
        super.viewDidLoad()
    }
    
    func startNFCReaderSession() {
        guard NFCTagReaderSession.readingAvailable else {
            // NFC功能不可用
            return
        }
        
        nfcSession = NFCTagReaderSession(pollingOption: .iso14443, delegate: self)
        nfcSession?.alertMessage = "将NFC标签靠近设备"
        nfcSession?.begin()
    }
    
    func tagReaderSessionDidBecomeActive(_ session: NFCTagReaderSession) {
        // 会话已激活，可以开始读取NFC标签
    }
    
    func tagReaderSession(_ session: NFCTagReaderSession, didInvalidateWithError error: Error) {
        // 会话无效，读取NFC标签失败
    }
    
    func tagReaderSession(_ session: NFCTagReaderSession, didDetect tags: [NFCTag]) {
        if let firstTag = tags.first {
            session.connect(to: firstTag) { (error: Error?) in
                if error != nil {
                    // 连接NFC标签失败
                    session.invalidate(errorMessage: "连接NFC标签失败")
                }
                
                if case let .miFare(tag) = firstTag {
                    let tagIdentifier = tag.identifier
                    // 在这里可以获取到NFC标签的标识符
                    print("NFC标签标识符：\(tagIdentifier)")
                } else {
                    // 不支持的NFC标签类型
                    session.invalidate(errorMessage: "不支持的NFC标签类型")
                }
            }
        } else {
            // 未检测到NFC标签
            session.invalidate(errorMessage: "未检测到NFC标签")
        }
    }
}