wxGameyuexiu/Assets/BGUICheck.cs

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

[ExecuteInEditMode]
public class BGUICheck : MonoBehaviour
{

    // Update is called once per frame
    void Update()
    {
            float bl2 = (float)Screen.height / this.GetComponent<RawImage>().texture.height;

            this.GetComponent<RectTransform>().sizeDelta = new Vector2(this.GetComponent<RawImage>().texture.width, this.GetComponent<RawImage>().texture.height);
            this.transform.localScale = new Vector3(bl2, bl2, bl2);
    
    }
}