[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fmIFUpvGrlThqOlLdl_fk_5s8YFUWgWNWjj6F-LEWnUQ":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":18,"related":19,"source":30,"type":31},[],"2024-06-28 17:24:54",156243897,[8,9,10,11],"","*","+","{n}",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":8},15,"598b6a380e90229dabefee6d6450cabd","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F25df0a76c61a7fbcbd990cf91ecd10a4.png","数据采集（2022-2023学年第二学期）","50790201e361449c9e89873d4749c3a4","下列选项中,表示匹配前导字符0次或1次的是( )",[20,32,42,52,61,70,79,88,91,99],{"answer":21,"createTime":22,"id":23,"options":24,"question":29,"source":30,"type":31},[],"2024-06-28 17:24:47",156243870,[25,26,27,28],"Element类的find()方法表示从根节点开始查找,并以列表形式返回匹配的节点","lxml库可以对HTML或XML文档中的节点定位和提取","ElementTree类对象可以理解为HTML或XML文档的树结构","lxml库可以对HTML文档缺少的&lt;html&gt;和&lt;body&gt;元素自动补全","关于lxml库的描述,说法错误的是( )","v1",0,{"answer":33,"createTime":34,"id":35,"options":36,"question":41,"source":30,"type":31},[],"2024-06-28 17:24:50",156243875,[37,38,39,40],"tag","text","tail","attrib","下列选项中,表示获取节点名称的是( )",{"answer":43,"createTime":44,"id":45,"options":46,"question":51,"source":30,"type":31},[],"2024-06-28 17:24:53",156243880,[47,48,49,50],"\u002F","\u002F\u002F","@","#","下列选项中,用于在XPath 中选取属性节点的是( )",{"answer":53,"createTime":44,"id":54,"options":55,"question":60,"source":30,"type":31},[],156243884,[56,57,58,59],"\u002F\u002Ftitle","\u002F\u002Fprice","\u002F\u002Ftitle &amp; \u002F\u002Fprice","\u002F\u002Ftitle | \u002F\u002Fprice","下列选项中,表示同时选取文档中所有title和price元素的是( )",{"answer":62,"createTime":5,"id":63,"options":64,"question":69,"source":30,"type":31},[],156243887,[65,66,67,68],"XPath基于XML或HTML的节点树定位目标节点所在的位置","XPath是一种用于确定XML文档中部分节点位置的语言","XPath匹配节点的方式与正则表达式匹配字符串的方式类似","XPath通过路径表达式可以快速地定位与选取XML或HTML文档中的一个节点或者一组节点集","关于XPath的描述,说法错误的是( )",{"answer":71,"createTime":5,"id":72,"options":73,"question":78,"source":30,"type":31},[],156243890,[74,75,76,77],"\u002Fappstore\u002Fapp(1)","\u002Fappstore\u002Fapp(first)","appstore\u002Fapp[1]","appstore\u002Fapp[first]","下列选项中,使用XPath选取第一个app元素的是( )",{"answer":80,"createTime":5,"id":81,"options":82,"question":87,"source":30,"type":31},[],156243893,[83,84,85,86],"bookstore","\u002Fbookstore","\u002F\u002Fbook","bookstore\u002Fbook","下列选项中,表示从根节点bookstore向下选取book子节点的是( )",{"answer":89,"createTime":5,"id":6,"options":90,"question":18,"source":30,"type":31},[],[8,9,10,11],{"answer":92,"createTime":5,"id":93,"options":94,"question":98,"source":30,"type":31},[],156243901,[95,96,97],"正则表达式是一种文本模式,它描述了匹配字符串的规则","XPath用于从HTML或XML格式的数据中提取所需的数据","Beautiful Soup只能从从HTML文件中提取数据","关于解析网页数据技术方案的描述,说法错误的是( )",{"answer":100,"createTime":5,"id":101,"options":102,"question":107,"source":30,"type":31},[],156243906,[103,104,105,106],"\\w","\\s","\\d","\\b","下列选项中,表示只能匹配任意数字的是( )"]