vb+mo实际开发的例子：第一章：GIS发展概况C.

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VB+MO实用开发例子：第一章：GIS开发简介；第二章：MO/VB二次开发入门；第三章：使用地图和图层，有详细的说明和例子；第四章：坐标系和几何对象；全书共九章，pdf格式。-VB+ MO practical development examples: First Chapter: GIS development profile Chapter: MO/VB secondary development of entry Chapter III: Using maps and layers, contains a detailed description and examples Chapter IV: coordinate system and geometry object book a total of nine chapters, pdf format.