楼(lóu )上说的很多,我补充一(yī )下,正确的应(yīng )该叫网络蜘蛛,又称爬虫,本质是搜索引(yǐn )擎派(pài )出的一个(gè )执行抓取任务的(de )程序(xù )蜘蛛(zhū )池(chí )的(de )本质是(shì )大量的网(wǎng )站(zhàn )互(hù )相(xiàng )链接(jiē ),每个站(zhàn )单(dān )独(dú )产(chǎn )生大量(liàng )的内容吸引蜘(zhī )蛛来爬(pá ),几(jǐ )千个网(wǎng )站(zhàn )互链时(shí ),可以想象蜘蛛的链接(jiē )
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