TAB地图四个文件为一层 点线面信息都可以用开放平台-TAB file as a layer map four point line information can be used open platform

VC界面设计：窗体Tab选项卡设计实例，看上去像是360软件的风格，但是还有些差距，甚至有些粗糙，不过写出了TAB选项卡的原理，新手能看得懂的原理，而且作者开放了源代码，用于学习比较不错。-VC interface design: Form Tab tab design example, looks like 360 ​ ​ software style, but also some gaps, and even some rough, but wrote the princ