1首(shǒu )先(xiān )标准只(zhī )是规定了这些函数的接(jiē )口(kǒu )和具体的运行(háng )效率的要求,这(zhè )些(xiē )函数具体是怎么写(xiě )得(dé )要(yào )看(kàn )各个编译器的(de )实现和平(píng )台2例如使(shǐ )用(yòng )的编译器是visual studio,微软(ruǎn )提供了(le )一部(bù )分C运(yùn )行(háng )时(shí )CRT的源(yuán )码,里(lǐ )面会(huì )有memcpy,strcpy之类的
Copyright © 2008-2018