无法在swift ios或mac os中获取公网ip

import Foundation

func getPublicIPAddress(completion: @escaping (String?) -> Void) {
    let url = URL(string: "https://api.ipify.org?format=json")!
    let task = URLSession.shared.dataTask(with: url) { (data, response, error) in
        if let data = data {
            if let json = try? JSONSerialization.jsonObject(with: data, options: []) as? [String: Any] {
                if let ipAddress = json["ip"] as? String {
                    completion(ipAddress)
                    return
                }
            }
        }
        completion(nil)
    }
    task.resume()
}

// 调用方法
getPublicIPAddress { (ipAddress) in
    if let ipAddress = ipAddress {
        print("Public IP Address: \(ipAddress)")
    } else {
        print("Failed to get public IP address")
    }
}

import Foundation

func getPublicIPAddress(completion: @escaping (String?) -> Void) {
    let host = Host.current()
    host.startMonitoring { (host) in
        if let ipAddress = host.address {
            completion(ipAddress)
        } else {
            completion(nil)
        }
    }
}

// 调用方法
getPublicIPAddress { (ipAddress) in
    if let ipAddress = ipAddress {
        print("Public IP Address: \(ipAddress)")
    } else {
        print("Failed to get public IP address")
    }
}