此程序完 成任意一个英文文本文件中英文单词的统 计工作。要求：把英文单词出现频率次数 由高到低打印出来；只要英文单词形式不 一样就算两个词，不考虑词语的复数时 态。-this procedure completed an arbitrary text in English English word document statistics. Requirements : English word frequency from high to low frequency prin

通过GPIO高低电频获取响应的时间例子，类似的可仿照此架构下-GPIO electricity through the high and low frequency response of time to obtain examples of similar architecture can be modeled under this