Unity使用Url加载网络图片

    IEnumerator DownLoadImgUserHead()
    {
        UnityWebRequest uwr = new UnityWebRequest("URL写在我这里", UnityWebRequest.kHttpVerbGET);
        uwr.downloadHandler = new DownloadHandlerTexture();
        yield return uwr.SendWebRequest();
        Texture2D texture = DownloadHandlerTexture.GetContent(uwr);
        imgUserHead.sprite = Sprite.Create(texture, new Rect(0, 0, texture.width, texture.height), new Vector2(0.5f, 0.5f));
    }