1首先标(biāo )准只是规定了(le )这些函数(shù )的接(jiē )口和具体(tǐ )的运行效(xiào )率的要求(qiú ),这(zhè )些函(hán )数具(jù )体(tǐ )是怎(zěn )么写得要(yào )看(kàn )各个编译器的实现(xiàn )和平台2例(lì )如(rú )使用(yòng )的编译器(qì )是(shì )visual studio,微软提供了(le )一部(bù )分(fèn )C运行(háng )时CRT的源码,里面会(huì )有memcpy,strcpy之(zhī )类的
Copyright © 2008-2018