C# #region#region 构造函数public AStar(Map map){this.map = map;}

C# #region#region 构造函数public AStar(Map map){this.map = map;} Map map=new HashMap(); map by map 请问Map map=new HashMap(); 为什么是这样,而不是Map map=new Map(); Map map = new HashMap(); map.put("first","football"); map.pu mind map map是什么意思 maP是什么意思? ( ) this map 空里填什么介词? This is a map ( ) Taiyuan Is this a map ( )drawing This is a map.(对"a map"提问)