Unity 发送语音，留存语音消息

Tip：预设Button上
1.添加Video Source组件
2.添加下面的脚本：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
public class PlayVideo : MonoBehaviour
{
   
   
    private Button playBtn;
    private AudioSource aud;

    // Start is called before the first frame update
    void Start()
    {
   
   
        playBtn = this.GetComponent<Button>();
        aud = this.GetComponent<AudioSource>();
        playBtn.onClick.AddListener(OnClickPlayBtn);
    }

    private void OnClickPlayBtn