{

                                        if(rot_1 == 3)

                                        {

                                            SubRoutine_1 (); /*左手走*/

                                        }

                                    }

                                }

                            }

                            else

                            {

                                if(gi_3 == 5)     /*从3号房间回家*/ 

                                {SubRoutine_1 ();   /*左手走*/

                                }

                                else

                                {

                                    if(gi_3 == 7)  /*从4号房间回家*/ 

                                    {

                                        SubRoutine_1 ();   /*左手走*//*从4号房间出                             来后一直采用左手走会紧贴4号房间的墙壁走，容易错过起点白圆*/

                                    }

                                }

                            }

                        }

                    }