楼(lóu )上说(shuō )的很(hěn )多,我补(bǔ )充(chōng )一(yī )下,正确的应该叫网络蜘蛛,又称(chēng )爬虫(chóng ),本质是搜索引擎派出的一(yī )个(gè )执(zhí )行抓(zhuā )取任务(wù )的程序蜘(zhī )蛛池的本质是(shì )大量(liàng )的网站互相链接(jiē ),每个站(zhàn )单独产(chǎn )生(shēng )大(dà )量(liàng )的(de )内容(róng )吸引蜘蛛来爬(pá ),几千个网站互链时,可以想(xiǎng )象蜘(zhī )蛛(zhū )的(de )链接(jiē )
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