_xiaofang/xiaofang/Assets/Script/npc/FireHydrant.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
public class FireHydrant : MonoBehaviour
{
    private GameObject xfs;

    // Start is called before the first frame update
    void Awake()
    {
        xfs = GameObject.Find("Canvas/xfs");
          
    }

    // Update is called once per frame
    void Update()
    {
        
    }

    private void OnTriggerEnter(Collider other)
    {
        xfs.gameObject.SetActive(true);
    }

    private void OnTriggerExit(Collider other)
    {
        xfs.gameObject.SetActive(false);
    }
}