1、创建文本

右键->create->ui->leagcy->text

2、设置字体

3、设置默认值和数字

4、当切换分辨率，分数不见问题

拖拽这里调整

调整到如下图

5、编写得分脚本

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class Score : MonoBehaviour
{
    private static int score = 0;
    private Text scoreText;
    private bool isAdd=false;
    // Start is called before the first frame update
    void Start()
    {
        scoreText = GameObject.Find("Canvas/score").GetComponent<Text>();
    }

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

    private void OnGUI()
    {
        scoreText.text = score.ToString();
    }

    private void OnTriggerEnter2D(Collider2D collision)
    {
        Debug.Log("触发");
        if (!isAdd) score++;
        isAdd = true;
    }
}

把脚本拖拽到柱子里面

效果