没事时抄写下来的，希望对更位想省事的朋友有点帮助，关于单片机的，我抄这个都快累的， 不知道现在有没有人先前抄好-Copying down all right when, in the hope that more places would like to save a friend a bit of help, on the SCM, I m tired of this copy, I do not know now that no one had a good copy