贴图的方法实现工业控制开关转换,实际编程中用得到的东西。-Mapping method of industrial control switch converter, the actual programming for what is used.

用于卡通图缩小放大以及各个映射模式的转换问题，Windows编程上机题-Used for the cartoon figure narrow amplification and all the conversion of the mapping, Windows computer programming problem