楼上(shàng )说的很多(duō ),我补(bǔ )充一(yī )下,正确的应该叫(jiào )网络蜘(zhī )蛛(zhū ),又(yòu )称爬虫(chóng ),本质是搜索(suǒ )引(yǐn )擎派出的(de )一(yī )个执行抓取任(rèn )务(wù )的程序蜘(zhī )蛛(zhū )池的本质是大量的网站互相链(liàn )接,每个(gè )站(zhàn )单独产(chǎn )生大量的内容(róng )吸引蜘蛛(zhū )来爬,几千个网(wǎng )站(zhàn )互链(liàn )时,可以想象蜘(zhī )蛛(zhū )的(de )链(liàn )接
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