public class ClearTime : MonoBehaviour
{
  [SerializeField] Text timeText;
  [SerializeField] VoidEventChannel levelStartedEventChannel;//开始游戏
  [SerializeField] VoidEventChannel levelClearedEventChannel;//玩家过关
  [SerializeField] StringEventChannel cleardTimeTextEventChannel;//带string参数的频道
  [SerializeField] VoidEventChannel playerDefeatedEventChannel;//玩家失败
  float clearTime;//时间
  bool stop = true;//计时停止

  private void OnEnable()
  {
    //游戏开始
    levelStartedEventChannel.AddListener(LevelStart);
    //玩家通关
    levelClearedEventChannel.AddListener(levelCleared);
    //玩家失败
    playerDefeatedEventChannel.AddListener(HideUI);
  }
  private void OnDisable()
  {
    //游戏开始
    levelStartedEventChannel.RemoveListener(LevelStart);
    //玩家通关
    levelClearedEventChannel.RemoveListener(levelCleared);
    //玩家失败
    playerDefeatedEventChannel.RemoveListener(HideUI);
  }
  private void FixedUpdate()
  {//当计时停止时 返回.
    if (stop)
      return;
    clearTime += Time.fixedDeltaTime;
    //将clearTime转化为秒,按格式输出
    timeText.text = System.TimeSpan.FromSeconds(clearTime).ToString(@"mm\:ss\:ff");
  }
  void LevelStart()
  {//开始游戏
    stop = false;//开始计时
  }
  void levelCleared()
  {//过关
    HideUI();
    cleardTimeTextEventChannel.Broadcast(timeText.text);
  }
  void HideUI()
  {
    stop = true;//计时停止
    GetComponent<Canvas>().enabled = false;//关闭ui显示
  }
}

using UnityEngine;
using UnityEngine.UI;
public class VictoryScreen : MonoBehaviour
{
  [SerializeField] VoidEventChannel levelClearedEventChannel;//获取事件频道
  [SerializeField] Button nextLevelButton;
  private void OnEnable()
  {
    levelClearedEventChannel.AddListener(ShowUI);
    nextLevelButton.onClick.AddListener(SceneLoader.LoadNextScene);//订阅下一关按钮功能
  }
  private void OnDisable()
  {
    levelClearedEventChannel.RemoveListener(ShowUI);
    nextLevelButton.onClick.RemoveListener(SceneLoader.LoadNextScene);//订阅下一关按钮功能
  }
  private void ShowUI()
  {
    GetComponent<Canvas>().enabled = true;
    GetComponent<Animator>().enabled = true;
    Cursor.lockState = CursorLockMode.None;
  }
}