这是我写的第一个基于上位机的程序，写这个软件的目的是将一个心电信号通过串口发送出去，而后再采集，这样来判断硬件的性能。请大家多提意见。-I wrote this is the first PC based on the procedures, write the purpose of this software is an ECG sent through the serial port, and later collected, to