C# Unity　多次元配列

using System.Collections;

using System.Collections.Generic;

using UnityEngine;

public class test : MonoBehaviour

{

    void Start()

    {

    int[,,] a = new int[3,4,2];

    Debug.Log(a.Length);

    Debug.Log(a.GetLength(1));  

    }

    // Update is called once per frame

    void Update()

    {

    }

}