楼上说的很多,我补(bǔ )充(chōng )一下,正确的应(yīng )该叫网(wǎng )络蜘蛛,又称爬(pá )虫(chóng ),本(běn )质是搜(sōu )索引(yǐn )擎派出的一(yī )个(gè )执行抓取任务(wù )的程(chéng )序(xù )蜘(zhī )蛛(zhū )池的本质(zhì )是(shì )大量(liàng )的(de )网站互相链接(jiē ),每个(gè )站(zhàn )单(dān )独产生大(dà )量的内容吸引蜘蛛来爬,几千个(gè )网站互链时,可(kě )以想象(xiàng )蜘蛛(zhū )的(de )链接(jiē )
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