连接服务器成功时，会在客户端生产一个player，这个player 的 prefab 可以在 Network Manager 中指定，如果不去重写一些方法的话，所有 player 生成的都是同一个 prefab 资源。

• 继承 Network Manager 重写 OnServerAddPlayer 方法，要自定义的prefab 一定要丢进注册列表中，也就是这个
  

  代码中是丢在这个容器中
  [SerializeField] List<GameObject> m_SpawnPrefabs = new List<GameObject>();
  但使用时是用
  public List<GameObject> spawnPrefabs { get { return m_SpawnPrefabs; }}

      /// <summary>
      /// 重写实例化对象，使用自定义的prefab，这个prefab必须在spawnPrefabs列表中
      /// </summary>
      /// <param name="conn"></param>
      /// <param name="playerControllerId"></param>
      public override void OnServerAddPlayer(NetworkConnection conn, short playerControllerId)
      {
          GameObject go = null;
          if (spawnPrefabs.Count > 0)
              go = spawnPrefabs[spawnPrefabs.Count - 1];
          else
              go = playerPrefab;
  
          var player = (GameObject)GameObject.Instantiate(go, GetStartPos().position, Quaternion.identity);
          NetworkServer.AddPlayerForConnection(conn, player, playerControllerId);
      }

• 源码

          void OnServerAddPlayerInternal(NetworkConnection conn, short playerControllerId)
          {
              if (m_PlayerPrefab == null)
              {
                  if (LogFilter.logError) { Debug.LogError("The PlayerPrefab is empty on the NetworkManager. Please setup a PlayerPrefab object."); }
                  return;
              }
  
              if (m_PlayerPrefab.GetComponent<NetworkIdentity>() == null)
              {
                  if (LogFilter.logError) { Debug.LogError("The PlayerPrefab does not have a NetworkIdentity. Please add a NetworkIdentity to the player prefab."); }
                  return;
              }
  
              if (playerControllerId < conn.playerControllers.Count  && conn.playerControllers[playerControllerId].IsValid && conn.playerControllers[playerControllerId].gameObject != null)
              {
                  if (LogFilter.logError) { Debug.LogError("There is already a player at that playerControllerId for this connections."); }
                  return;
              }
  
              GameObject player;
              Transform startPos = GetStartPosition();
              if (startPos != null)
              {
                  player = (GameObject)Instantiate(m_PlayerPrefab, startPos.position, startPos.rotation);
              }
              else
              {
                  player = (GameObject)Instantiate(m_PlayerPrefab, Vector3.zero, Quaternion.identity);
              }
  
              NetworkServer.AddPlayerForConnection(conn, player, playerControllerId);
          }