[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fmruQpCW70PD4Ae8viTl2TC5le0WwwFG2bAU7V3nUoIo":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":16,"related":17,"source":27,"type":28},[],"2023-11-28 00:09:40",109256579,[8,9,10,11],"","*","+","{n}",{"courseId":13,"courseImg":14,"courseName":15},"aa591ba64c831c6a7d1fabef6997a221","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6cc5d15badb99de1b6caa802a36ce750.png","Python网络爬虫基础教程","下列选项中,表示匹配前导字符0次或1次的是()",[18,29,38,47,56,65,73,76,85,94],{"answer":19,"createTime":5,"id":20,"options":21,"question":26,"source":27,"type":28},[],109256561,[22,23,24,25],"lxml","Beautiful Soup","JSONPath","Requests","下列选项中,不能用于解析网页数据的是( )","v1",0,{"answer":30,"createTime":5,"id":31,"options":32,"question":37,"source":27,"type":28},[],109256565,[33,34,35,36],"\\w","\\d","\\D","\\W","下列选项中,用于匹配任意数字的是( )",{"answer":39,"createTime":5,"id":40,"options":41,"question":46,"source":27,"type":28},[],109256567,[42,43,44,45],"\u002F","\u002F\u002F","@","#","下列选项中,用于在Xpath中选取属性节点的是( )",{"answer":48,"createTime":5,"id":49,"options":50,"question":55,"source":27,"type":28},[],109256570,[51,52,53,54],"re模块是Python中可操作正则表达式的模块","re模块中的compile()函数用于对正则表达式进行预编译","使用findall()方法和finditer()方法可以获取所有与正则表达式匹配的内容","使用finditer()方法返回的是列表,使用findall()方法返回的是迭代器","下列选项中,关于re模块说法错误的是( )",{"answer":57,"createTime":5,"id":58,"options":59,"question":64,"source":27,"type":28},[],109256573,[60,61,62,63],"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","使用lxml库可以对HTML文档或XML文档中的节点进行定位和提取","ElementTree类对象可以理解为HTML文档或XML文档的树结构","使用lxml库可以对HTML文档缺少的和元素自动补全","下列选项中,关于lxml库说法错误的是( )",{"answer":66,"createTime":5,"id":67,"options":68,"question":72,"source":27,"type":28},[],109256575,[60,69,70,71],"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()",{"answer":74,"createTime":5,"id":6,"options":75,"question":16,"source":27,"type":28},[],[8,9,10,11],{"answer":77,"createTime":5,"id":78,"options":79,"question":84,"source":27,"type":28},[],109256582,[80,81,82,83],"一条正则表达式也称为一个模式","正则表达式匹配HTML时会根据其层次结构进行匹配","正则表达式由普通字符、元字符或预定义字符集组成","正则表达式是对字符串操作的一种逻辑公式","关于正则表达式的描述,说法错误的是()",{"answer":86,"createTime":5,"id":87,"options":88,"question":93,"source":27,"type":28},[],109256584,[89,90,91,92],"tag","text","tail","attrib","下列选项中,表示获取节点名称的是()",{"answer":95,"createTime":5,"id":96,"options":97,"question":99,"source":27,"type":28},[],109256585,[98,42,44,9],"$","下列选项中,在JSONPath中表示选取根对象的是()"]