这就是问题所在。我设置了一个记分牌，并制作它以便我的学生可以在记分牌上减轻一些图像（星星的数量）。
这是调用 void 的代码：
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.SceneManagement;
public class ScoreBoard : MonoBehaviour
{
public float timerassesshigh; //change for every level (for gold)
public float timerassesslow; //change for every level (for silver)
public timer timer;
private SceneFadeEffect sceneFade;
private Scene scene;
public int nextLevelRecord;
private int levelcurrentat;
public string NextLevel;
public AudioSource leveldonedun;
private GameObject musicg;
public AudioSource music;
public Animator leveldonefade;
public Image leveldonefadesprite;
public GameObject buttons;
public rankaudioandlog rankaudioandlog;
private void Awake() …