介绍谷歌离线地图插件API，及部分功能演示。 特别适合Winform里实现离线谷歌的朋友们。 支持VB,VC,DELPHI,C#,VB.NET等多种语言-Google offline map plug-in API, and part of the function demo. Particularly suitable for Winform to achieve offline friends Google friends. Support VB, VC, DELPHI, C#, V