楼上(shàng )说(shuō )的很多,我补充一(yī )下,正确的应(yīng )该(gāi )叫(jiào )网(wǎng )络蜘蛛(zhū ),又称爬虫,本质是搜索引擎(qíng )派(pài )出的(de )一个执(zhí )行抓取任(rèn )务(wù )的程序蜘蛛池(chí )的本(běn )质是大量的网站互相链接(jiē ),每个站单独(dú )产(chǎn )生大量的(de )内容(róng )吸引蜘蛛(zhū )来爬(pá ),几千个网(wǎng )站(zhàn )互链(liàn )时,可以想(xiǎng )象蜘(zhī )蛛的链(liàn )接
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