前言

每次有相关功能，都要找半天，怪麻烦的。

正文

这里实例Image，有时候是RawImage。
这样写 可以使触发和功能分开，低耦合。

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
public class SpritesChange : MonoBehaviour
{
    [Header("每帧间隔时间（秒）")]
    [Range(0.01f, 1)]
    public float offset = 0.5f;
    public AudioClip aClip;
    //默认不循环，调试模式是循环状态
    public bool isDebug;
    //播放完成后，需要控制隐藏的物体，大多数带有特效和模型。
    public GameObject[] gos_Content;
    public Sprite[] sprites; 

    private Image image;
    private AudioSource aSource;
    private int currentId;
    private int maxNum;
    private Coroutine coroutine;
    private void Awake()
    {
        image = GetComponent<Image>();
        aSource = GetComponent<AudioSource>();
        isDebug = false;
        currentId = 0;
        maxNum = sprites.Length;

    }

    private void OnEnable()
    {
        coroutine = StartCoroutine(PlaySprite());
    }
    private void OnDisable()
    {
        if (coroutine != null)
        {
            StopCoroutine(coroutine);
            coroutine = null;
        }
        currentId = 0;

    }
    IEnumerator PlaySprite()
    {
        if (maxNum > 0)
        {
            if (aSource != null)
            {
                aSource.clip = aClip;
                aSource.Play();
            }
            while (true)
            {
                image.sprite = sprites[currentId];
                currentId++;
                yield return new WaitForSeconds(offset);
                if (currentId >= maxNum)
                {
                    if (isDebug)
                    {
                        currentId = 0;
                    }
                    else
                    {
                        break;
                    }

                }
            }
        }
        if (gos_Content.Length > 0)
        {
            TransformHelper.SetActive(gos_Content, false);
        }
        coroutine = null;

    }
}