1首先标(biāo )准只(zhī )是(shì )规(guī )定了(le )这些(xiē )函数的接口和具体的运行(háng )效率的要求,这些函(hán )数具体是(shì )怎么写得(dé )要(yào )看(kàn )各(gè )个编译器(qì )的实(shí )现和平台(tái )2例如使用(yòng )的编(biān )译(yì )器(qì )是visual studio,微(wēi )软提供了一部(bù )分C运行时(shí )CRT的(de )源码,里(lǐ )面会(huì )有memcpy,strcpy之(zhī )类的
Copyright © 2008-2018