楼上说的(de )很(hěn )多,我(wǒ )补充一(yī )下(xià ),正确的应该(gāi )叫网(wǎng )络蜘(zhī )蛛,又(yòu )称爬虫,本质是(shì )搜索引(yǐn )擎派出的一个(gè )执(zhí )行(háng )抓(zhuā )取任务的程(chéng )序蜘蛛(zhū )池的本质是大(dà )量的网站互相链接,每个站(zhàn )单独产生(shēng )大(dà )量(liàng )的内容吸引蜘蛛来爬,几千个网(wǎng )站(zhàn )互链时(shí ),可(kě )以(yǐ )想(xiǎng )象蜘蛛的链(liàn )接(jiē )
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