1.用Resources.Load（）；参数为路径，需要在Assets文件夹中创建Resources文件夹，通过路径去查找，实例化并加入到内存中去，通过Instantiate动态加载的方法来实现物体场景的加载；

2.使用AssetBundle打包预设或者场景可以将与其相关的所有资源打包，这样很好地解决资源的依赖问题

要先打包资源：

using UnityEngine;

using System.Collections;

using UnityEditor;

using System.IO;

public class AesstBundleTest : MonoBehaviour {

 

[MenuItem("Custom Bundle/Create Bundel Main")]

public static void creatBundleMain()

{

//获取选择的对象的路径

Object[] os = Selection.GetFiltered(typeof(Object), SelectionMode.DeepAssets);

bool isExist = Directory.Exists(Application.dataPath + "/StreamingAssets");

if (!isExist)

{

Directory.CreateDirectory(Application.dataPath + "/StreamingAssets");

}

foreach (Object o in os)

{

string sourcePath = AssetDatabase.GetAssetPath(o);

string targetPath = Application.dataPath + "/StreamingAssets/" + o.name + ".assetbundle";

if (BuildPipeline.BuildAssetBundle(o, null, targetPath, BuildAssetBundleOptions.CollectDependencies))

{

print("create bundle cuccess!");

}

else

{

print("failure happen");

}

AssetDatabase.Refresh();

}

}

[MenuItem("Custom Bundle/Create Bundle All")]

public static void CreateBundleAll()

{

bool isExist = Directory.Exists(Application.dataPath + "/StreamingAssets");

if (!isExist)

{

Directory.CreateDirectory(Application.dataPath + "/StreamingAssets");

}

Object[] os = Selection.GetFiltered(typeof(Object), SelectionMode.DeepAssets);

if (os == null || os.Length == 0)

{

return;

}

string targetPath = Application.dataPath + "/StreamingAssets/" + "All.assetbundle";

if (BuildPipeline.BuildAssetBundle(null, os, targetPath, BuildAssetBundleOptions.CollectDependencies))

{

print("create bundle all cuccess");

}

else

{

print("failure happen");

}

AssetDatabase.Refresh();

}

}

把上面的代码放在Editor中，在菜单栏中就可以看见自定的菜单项，选中需要打包的预设，就可以把对应的预设打包并输出到StreamAssets中了

下面就是加载了：

using UnityEngine;

using System.Collections;

public class LoadBundleTest : MonoBehaviour {

//不同平台下StreamingAssets的路径是不同的，这里需要注意一下。

public static readonly string PathURL =

#if UNITY_ANDROID

"jar:file://" + Application.dataPath + "!/assets/";

#elif UNITY_IPHONE

Application.dataPath + "/Raw/";

#elif UNITY_STANDALONE_WIN || UNITY_EDITOR

"file://" + Application.dataPath + "/StreamingAssets/";

#else

string.Empty;

#endif

 

// Update is called once per frame

void Update () {

}

void OnGUI()

{

if (GUILayout.Button("Load Bundle Main"))

{

string path_shpere = PathURL + "MySpherePreb.assetbundle";

StartCoroutine(loadBundleMain(path_shpere));

string path_cube = PathURL + "MyCubePreb.assetbundle";

StartCoroutine(loadBundleMain(path_cube));

print(path_cube);

}

if (GUILayout.Button("Load Bundle All"))

{

StartCoroutine(loadBundleAll(PathURL + "All.assetbundle"));

}

}

private IEnumerator loadBundleMain(string path)

{

WWW bundle = new WWW(path);

// yield return bundle;

Instantiate(bundle.assetBundle.mainAsset);

bundle.assetBundle.Unload(false);

yield return 1;

}

private IEnumerator loadBundleAll(string path)

{

WWW bundle = new WWW(path);

yield return bundle;

Instantiate(bundle.assetBundle.Load("MyCubePreb"));

Instantiate(bundle.assetBundle.Load("MySpherePreb"));

yield return 1;

}

}