说明：  软件滤波在嵌入式的数据采集和处理中有着很重要的作用，这10种方法各有优劣，根据自己的需要选择。同时提供了C语言的参考代码，希望对各位能有帮助
(Filtering software in embedded data acquisition and processing has a very important role, the 10 kinds of methods have advantages and disadvantages, according to their needs. Also provides a C language reference code, I hope you can help)