/// <summary>
/// 释放指定场景所有包
/// </summary>
/// <param name="sceneName"></param>
public void UnLoadAllAssetBundle(string sceneName)
{
if (sceneManagers.ContainsKey(sceneName))
{
IABSceneManager sceneMgr = sceneManagers[sceneName];
sceneMgr.DisposeAllBundles();
System.GC.Collect();
}
}