楼上说的很多,我补充一下,正确的应该叫网络蜘蛛,又称爬虫,本质是搜索引擎派出的一个执行抓取任务的程序蜘蛛池的本质是大量的网站互相链接,每个站单独产生大量的内容吸引蜘蛛来爬,几千个网站互链时,可以想象蜘蛛的链接秦爷前妻美又飒短剧The fifth-year residents return for the first day of a year that will make or break their careers: Meredith faces the consequences of tampering with Derek's clinical trial and is terminated at the hospital; April tries to step up to the plate as Chief Resident in the wake of a giant sinkhole in the middle of Seattle; and Cristina and Owen are still at odds over their drastically different feelings for their unborn child.