你好，我正在做我的第一个游戏，我完成了添加质量设置到我的游戏，我如何保存球员的选项，使选项总是选择，即使退出游戏后。我试着看教程，但它不工作
我只是想保存的选项，球员选择，即使在游戏关闭后

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

public class SettingsMenu : MonoBehaviour
{

    public TMPro.TMP_Dropdown resolutionDropdown;
    Resolution[] resolutions;

    private void Start()
    {
        int CurrentResolutionIndex = 0;
        resolutions = Screen.resolutions;

        resolutionDropdown.ClearOptions();

        List<string> options = new List<string>();

        int currentResolutionIndex = 0;
        for (int i = 0; i < resolutions.Length; i++)
        {
            string Option = resolutions[i].width + " x " + resolutions[i].height;
            options.Add(Option);

            if (resolutions[i].width == Screen.currentResolution.width &&
                resolutions[i].height == Screen.currentResolution.height)
            {
                CurrentResolutionIndex = i;
            }
        }

        resolutionDropdown.AddOptions(options);
        resolutionDropdown.value = CurrentResolutionIndex;
        resolutionDropdown.RefreshShownValue();
    }

    public void SetResolution(int ResolutionIndex)
    {
        Resolution resolution = resolutions[ResolutionIndex];
        Screen.SetResolution(resolution.width, resolution.height, Screen.fullScreen);
    }

    public void SetQuality(int qualityIndex)
    {
        QualitySettings.SetQualityLevel(qualityIndex);
    }

    public void SetFullscreen(bool isFullscreen)
    {
        Screen.fullScreen = isFullscreen;
    }

}