using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;    //加载unity UI组件

public class Scroller : MonoBehaviour
{

[SerializeField] private RawImage _img;
[SerializeField] private float _x, _y;


void Update()
{
    //Rect.Rect(Vector2 position, Vector2 size)
    _img.uvRect = new Rect(_img.uvRect.position + new Vector2(_x, _y) * Time.deltaTime, _img.uvRect.size);
}


}

存在一个问题，偏移超过将 出现纯色。