该服务器是否需要 NAT 穿透？
using UnityEngine;
using System.Collections;
public class ExampleClass : MonoBehaviour {
void Start() {
HostData[] hostData = MasterServer.PollHostList();
foreach (HostData element in hostData) {
Debug.Log(element.gameName + " Uses NAT: " + element.useNat);
}
}
}