1首(shǒu )先标准(zhǔn )只(zhī )是(shì )规定了这(zhè )些函数的接(jiē )口和具体的(de )运行(háng )效率的要求,这些函数具体(tǐ )是怎么写(xiě )得(dé )要(yào )看各个(gè )编(biān )译器的实(shí )现和平台(tái )2例(lì )如(rú )使用的编译(yì )器是visual studio,微软提(tí )供了一(yī )部(bù )分(fèn )C运行(háng )时CRT的源码(mǎ ),里面会(huì )有memcpy,strcpy之类的
Copyright © 2008-2018