实现google地图的实用化，利用静态的javascrip来控制空间-Google map to achieve the practical use of static javascrip to control space

简单的A-star寻路算法，给出了几种不同的地图，并得到正确的寻路结果-A-star a simple routing algorithm, are given several different types of maps, and the results of the correct routing

google地图瓦片抓取工具。地图浏览程序。-google maps tiles crawlers.