楼上(shàng )说的很多,我(wǒ )补充一下,正确的应该(gāi )叫网(wǎng )络蜘蛛(zhū ),又称爬(pá )虫,本质是搜索(suǒ )引(yǐn )擎派出的一(yī )个执(zhí )行抓(zhuā )取任(rèn )务的程序蜘蛛(zhū )池的本(běn )质是大量(liàng )的网站互相链(liàn )接,每个(gè )站(zhàn )单(dān )独(dú )产生(shēng )大量的内容吸引(yǐn )蜘蛛来(lái )爬,几千个(gè )网站互链时(shí ),可(kě )以想象蜘(zhī )蛛(zhū )的链接
Copyright © 2008-2018