void Start()
{
poolMgr.CreatePool <MLObjectPool <TestObjectItem>, TestObjectItem>(preloadAmount: 10);
}
void Start()
{
GameObject roleObj = MLResourceManager.Instance.LoadResource(POOL_ITEM_NAME, GameResourceType.RES_ROLE) as GameObject;
poolMgr.CreatePool <MLPrefabPool, Transform>(roleObj.transform, 10);
}