Unity:PC开发，鼠标点击物体触发物体更换材质

实现目标：鼠标点击物体更换物体材质

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.EventSystems;
using UnityEngine.UI;
public class CMCSBottleClick : MonoBehaviour
{
    Material[] Mater = new Material[2];//材质
    public GameObject tianpingShow;
    public GameObject PEOBottle;
    //绑定按钮
    private void Awake()
    {
        PEOBottle.GetComponent<PEOBottleClick>().enabled = false;//代码组件关闭
    }
    private void Start()
    {
        Mater[0] = Resources.Load<Material>("Material/meterial0");//材质替换
        Mater[1] = Resources.Load<Material>("Material/meterial27");
    }
    void OnMouseDown()
    {
        StartCoroutine("delayMedicalShow0");
       tianpingShow.GetComponent<MeshRenderer>().material = Mater[1];//称量显示
        this.GetComponent<Collider>().enabled = false;
    }
    IEnumerator delayMedicalShow0()
    {
        yiel