脚本创建预制体

 static Object CreatePrefab(GameObject go, string name)
    {
        Object tempPrefab = EditorUtility.CreateEmptyPrefab("Assets/" + name + ".prefab");
        tempPrefab = EditorUtility.ReplacePrefab(go, tempPrefab);
        Object.DestroyImmediate(go);
        return tempPrefab;
    }