楼上(shàng )说的(de )很多,我补充一(yī )下,正确的应(yīng )该叫网络蜘(zhī )蛛,又称(chēng )爬(pá )虫(chóng ),本质是搜(sōu )索引(yǐn )擎派出(chū )的(de )一个执行抓取任务的程序蜘蛛池(chí )的本(běn )质是大量的网站(zhàn )互相链(liàn )接,每个站单独产(chǎn )生(shēng )大(dà )量的(de )内容吸(xī )引蜘蛛来(lái )爬,几(jǐ )千个(gè )网(wǎng )站(zhàn )互链时(shí ),可以想象蜘蛛的(de )链(liàn )接(jiē )
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