4线双极性步进电机，其中有c语音变成的源代码调试过的， 有单四拍，双4拍，还有半步8拍方式 还有细分方式，其中有UDN2916应用等多种芯片资料加电路连接原理图-4-wire bipolar stepper motors, which have become the source code c voice debugging off, a single four-beat, double four beats, as well as half-step mode and 8-beat break

HeadFirst设计中的MVC展示 功能：管理节拍，维护当前BPM的状态和许多产生MIDI事件的代码，以便让我们听到的节拍，主main函数为DJTestDrive.java-In the design of HeadFirst display MVC Management function: beat, maintenance of current status of BPM and MIDI have many events of the code, so that we can h

matlab智能算法基于蚁群算法的二维路径规划（案例背景为在一个200*200的空间中找寻从起点S到终点D的最优路径）-ant colony algorithm find the beat path between two points in a two dimension place