1首先标(biāo )准只是规(guī )定了这(zhè )些(xiē )函数(shù )的接口(kǒu )和(hé )具(jù )体(tǐ )的运行效率的要求,这些函数(shù )具(jù )体是(shì )怎么(me )写得(dé )要(yào )看(kàn )各个编(biān )译器的实现和平台2例如使(shǐ )用(yòng )的编译器是(shì )visual studio,微(wēi )软提供了一部分C运行(háng )时CRT的源码,里面(miàn )会(huì )有memcpy,strcpy之类的
Copyright © 2008-2018