//打开资料片中指定关卡
public void PlayDlc(Chapter chapter, int levelIdx)
{
Main.Ins.GameStateMgr.SaveState();
LevelDatas.LevelDatas lev = chapter.GetItem(levelIdx);
Main.Ins.CombatData.GLevelItem = lev;
Main.Ins.CombatData.GRecord = null;
Main.Ins.CombatData.GLevelMode = LevelMode.SinglePlayerTask;
Main.Ins.CombatData.GGameMode = GameMode.Normal;
Main.Ins.CombatData.wayPoints = CombatData.GetWayPoint(lev);
U3D.LoadLevelEx();
}