//管理生命周期
void CheckEffect()
{
//编辑器中误操作，移除所有为null的引用
for (int i = livetimelist.Count - 1; i >= 0; i--)
{
livetimelist[i].lifetime--; //生命周期每帧 -1
if (livetimelist[i].lifetime <= 0) //生命周期结束 删除特效
{
iextplayer.CloseEffectLooped(livetimelist[i].effid);
livetimelist.RemoveAt(i);
}
}
//Resources.UnloadUnusedAssets();
//GC.Collect();
}