创建AudioManager类，将这个脚本赋给GameManager，添加并指定AudioSource组件

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


public class AudioManager : MonoBehaviour {


private static AudioManager am;


public static AudioManager getAudioManager{
get{
return am;
}
}


void Awake () {
am = this;
}


public AudioSource audioSource;


public void RandomPlayAudioInClips(AudioClip[] clips){
int index=Random.Range (0, clips.Length);
//audioSource.clip = clips [index];
//audioSource.Play ();
audioSource.PlayOneShot (clips [index]);
}
public void PlayAudioClip(AudioClip clip){
//audioSource.clip = clip;
//audioSource.Play ();
audioSource.PlayOneShot (clip);

}
}

在其他地方就可以通过以下方式调用，很是方便

public AudioClip[] attackClips;

AudioManager.getAudioManager.RandomPlayAudioInClips (attackClips);

public AudioClip damageClip;

AudioManager.getAudioManager.PlayAudioClip (damageClip);