自己制作的VC++串口程序，实现与下位机通信，可以接受两组传感器数据，数据格式为A 1 12.34 0 32.34 Z,A、Z是开始与停止位，1、0为报警信息，12.34、32.34为有效数据-Serial port the VC++ program to produce their own, communicate with the next bit machine, you can accept two sets of sensor data, data format for the A 1

采用VC编写的2圆交点算法， 包括点点距离算法等函数， 有兴趣可以参考。Bill.Z-VC prepared using two circular intersection algorithms, including little distance algorithm and other functions, are interested can refer to. Bill.Z