楼上(shàng )说(shuō )的(de )很多(duō ),我补充一(yī )下,正确(què )的应该叫网络蜘(zhī )蛛,又称(chēng )爬虫,本质是搜索(suǒ )引(yǐn )擎(qíng )派出(chū )的一个执行抓取(qǔ )任务(wù )的程序(xù )蜘蛛池的本质是大(dà )量的网(wǎng )站(zhàn )互(hù )相链(liàn )接(jiē ),每个站单独产(chǎn )生大(dà )量的(de )内容(róng )吸(xī )引蜘蛛(zhū )来爬(pá ),几千个网站互链时,可(kě )以(yǐ )想象蜘蛛的链(liàn )接(jiē )
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