楼(lóu )上(shàng )说的很多,我补充(chōng )一(yī )下,正确的应该叫(jiào )网(wǎng )络蜘蛛(zhū ),又(yòu )称爬虫,本(běn )质是搜索引(yǐn )擎(qíng )派(pài )出的(de )一(yī )个执(zhí )行抓取(qǔ )任务的程(chéng )序(xù )蜘蛛池(chí )的本(běn )质是(shì )大(dà )量(liàng )的网站互相链接,每(měi )个站单独产生(shēng )大量的内容吸(xī )引蜘蛛来(lái )爬,几千个(gè )网站(zhàn )互链时,可以想象蜘蛛的链接(jiē )
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