学校比赛"简易信号参数分析仪"所有完整代码无私奉献！！多日奋战，500余行，原创！代码可全部或部分参考到工程中！-School Competition " Simple Signal parameter analyzer"　All the complete code selfless dedication! ! Several days fighting, more than 500 lines, originality! Code can be all or part of the reference to the project!