Java游戏中的AStar算法源代码，根据以往网络上的代码改编，给学习J2me的朋友一些参考，有的地方写的不好，本人也是在摸索中-AStar algorithm source code in Java games, according to the code adapted in the past on the network, to learn J2me friends some reference in some places is badly written, and I was groping