说明：  原本来自于大名鼎鼎的mit的leach源程序，但对其中不完善的地方做了修改，并有很详细的中文注释，对于研究无线传感器中的leach协议的初学者是一个很好的资料。
(Originally mit from the famous source of the leach, but the imperfections of which had been amended, and the Chinese had a very detailed notes, for research in wireless sensor leach agreement is a good beginner information.)