void OnGUI()    {        if (GUI.Button(new Rect(0, 0, 200, 50), "WWW"))        {            Debug.Log("WWW");            www = WWW.LoadFromCacheOrDownload("ftp://192.168.28.80/Windows32/Assets.Resources.LogicPrefab.Pet.P-M-Egg1.assetbundle", 1);            StartCoroutine(WWWCoroutine());        }        if (GUI.Button(new Rect(0, 50, 200, 50), "www.assetBundle.Load"))        {            Debug.Log("www.assetBundle.Load");            // asset = www.assetBundle.mainAsset;            StartCoroutine(AssetBundleLoadAsync());        }        if (GUI.Button(new Rect(200, 50, 200, 50), "www.assetBundle.unload(false)"))        {            Debug.Log("www.assetBundle.unload(false)");            www.assetBundle.Unload(false);            www = null;        }        if (GUI.Button(new Rect(400, 50, 200, 50), "www.assetBundle.unload(true)"))        {            Debug.Log("www.assetBundle.unload(true)");            www.assetBundle.Unload(true);        }        if (GUI.Button(new Rect(0, 100, 200, 50), "Instantiate"))        {            Debug.Log("Instantiate");            ins = GameObject.Instantiate(asset, Vector3.zero, Quaternion.identity) as GameObject;        }        if (GUI.Button(new Rect(200, 100, 200, 50), "Destroy"))        {            Debug.Log("Destroy");            GameObject.Destroy(ins);            ins = null;        }        if (GUI.Button(new Rect(0, 150, 200, 50), " Resources.UnloadUnusedAssets"))        {            Debug.Log("Resources.UnloadUnusedAssets");            Resources.UnloadUnusedAssets();        }        if (GUI.Button(new Rect(200, 150, 200, 50), " Resources.UnloadUnusedAssets && SetNull"))        {            Debug.Log("Resources.UnloadUnusedAssets && SetNul");            asset = null;            Resources.UnloadUnusedAssets();        }    }