AssetBundle加载的四种方式

using System.Collections;using System.Collections.Generic;using UnityEngine;using System.IO;public class LoadFromFileExample : MonoBehaviour {    string path;   void Start () {        path = "AssetBundle/scene/cubewall.unity3d";//路径        AssetBundle.LoadFromFile("AssetBundle/material/wood.unity3d");//加载依赖贴图，材质        //  StartCoroutine(LoadAssetBundleFromMemoryAsync());        //  LoadAssetBundleFromMemory();        //  LoadFromFile();          StartCoroutine(LoadFromFileAsyn());    }    #region 第一种类型    //第一种加载异步    IEnumerator LoadAssetBundleFromMemoryAsync()    {        AssetBundleCreateRequest createRequest = AssetBundle.LoadFromMemoryAsync(File.ReadAllBytes(path));        yield return createRequest;        AssetBundle AB = createRequest.assetBundle;        GameObject obj = AB.LoadAsset<GameObject>("cube");        Instantiate(obj);    }    //第一种同步加载    private void LoadAssetBundleFromMemory()    {         AssetBundle AB= AssetBundle.LoadFromMemory(File.ReadAllBytes(path));         GameObject obj = AB.LoadAsset<GameObject>("cube");        Instantiate(obj);     }    #endregion    #region 第二种类型    //同步加载    void LoadFromFile()    {        AssetBundle AB = AssetBundle.LoadFromFile(path);        if (AB == null)        {            Debug.LogWarning("Fail to load AssetBundle");            return;        }        GameObject obj = AB.LoadAsset<GameObject>("cube");        Instantiate(obj);    }    //异步加载    IEnumerator LoadFromFileAsyn()    {         AssetBundleCreateRequest createRequest=AssetBundle.LoadFromFileAsync(path);        yield return createRequest;        AssetBundle AB = createRequest.assetBundle;        if (AB == null)        {            Debug.LogWarning("Fail to load AssetBundle");            yield break;        }       AssetBundleRequest Request = AB.LoadAssetAsync<GameObject>("cube");        yield return Request;        if (Request == null)        {            Debug.LogWarning("Fail to load Request");            yield break;        }        GameObject obj = Request.asset as GameObject;        Instantiate(obj);    }    #endregion}