楼上(shàng )说(shuō )的很(hěn )多(duō ),我补(bǔ )充一下(xià ),正确的应该叫网(wǎng )络(luò )蜘蛛,又称爬虫(chóng ),本(běn )质是搜索引擎(qíng )派出的一个执行抓取任(rèn )务的程(chéng )序蜘(zhī )蛛池的本质是(shì )大量的网站(zhàn )互相(xiàng )链接,每个站单独产生(shēng )大(dà )量的内(nèi )容(róng )吸(xī )引蜘(zhī )蛛(zhū )来爬(pá ),几千个(gè )网(wǎng )站互链时,可以想象蜘蛛的链(liàn )接(jiē )
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