Unity在一个场景中用滚动条调节音量大小，同时作用于多个场景

1、滚动条音量大小调节

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

public class Music_Height : MonoBehaviour
{
    public AudioSource audiosource;
    public Scrollbar scrollbar;
    public static bool musiccomplete = false;//保存操作数据，当musiccomplete的值为true时，操作完成
    public static float musicheight;//保存当前滚动条的值

    private void Start()
    {
        scrollbar.value = audiosource.volume;//滚动条的初始值为音频的音量大小
    }

    void Update()
    {
        music_height();
    }

    public void music_height()
    {
        audiosource.volume = scrollbar.value;
        musiccomplete = true;
        musicheight = scrollbar.value;
    }
}

在第一个场景创建一个滚动条，挂载脚本，然后在脚本上添加音频控制器和滚动条。

2、音频控制

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

public class Music_Control