python selenium xpath 取值请教

Z隐

代码：
        <table id="btable_ui-id-34" tabindex="0" cellspacing="0" cellpadding="0" border="0" role="grid" aria-multiselectable="false" aria-labelledby="ui-id-34" class="ui-jqgrid-btable" style="width: 1852px; table-layout: fixed;"><tbody><tr class="jqgfirstrow" role="row" style="height:auto"><td role="gridcell" style="height: 0.01px; width: 100px; display: none;"></td><td role="gridcell" style="height: 0.01px; width: 539px;"></td><td role="gridcell" style="height: 0.01px; width: 302px;"></td><td role="gridcell" style="height: 0.01px; width: 100px; display: none;"></td><td role="gridcell" style="height: 0.01px; width: 216px;"></td><td role="gridcell" style="height: 0.01px; width: 216px;"></td><td role="gridcell" style="height: 0.01px; width: 150px; display: none;"></td><td role="gridcell" style="height: 0.01px; width: 150px; display: none;"></td><td role="gridcell" style="height: 0.01px; width: 150px; display: none;"></td><td role="gridcell" style="height: 0.01px; width: 172px;"></td><td role="gridcell" style="height: 0.01px; width: 129px;"></td><td role="gridcell" style="height: 0.01px; width: 80px; display: none;"></td><td role="gridcell" style="height: 0.01px; width: 172px;"></td><td role="gridcell" style="height: 0.01px; width: 106px;"></td></tr><tr role="row" id="1" tabindex="0" class="jqgrow" data-level="0" aria-level="0" aria-expanded="true"><td colspan="3" style="white-space:nowrap;display:none;" title="1" aria-describedby="ui-id-34_id" aria-labelledby="jqh_ui-id-34_id" role="gridcell">&nbsp;</td>
          <td colspan="11" rowspan="4" style="white-space:nowrap;display:none;" title="8029996307" aria-describedby="ui-id-34_acctCd" aria-labelledby="jqh_ui-id-34_acctCd" role="gridcell">&nbsp;</td></tr><tr role="row" id="4" tabindex="-1" class="jqgrow" data-level="0" aria-level="0" aria-expanded="true"><td role="gridcell" style="white-space:nowrap;display:none;" title="4" aria-describedby="ui-id-34_id" aria-labelledby="jqh_ui-id-34_id">4</td><td role="gridcell" style="white-space:nowrap;" title="B" aria-describedby="ui-id-34_offerName" aria-labelledby="jqh_ui-id-34_offerName"><div class="tree-wrap" style="width:18px;"><div style="margin-left:0px;" class=" tree-leaf "></div></div>
        <span class="cell-wrapper leaf"><span searchvalue="ZW947889">B</span></span></td>
        <td role="gridcell" style="white-space:nowrap;" title="ZW947889" aria-describedby="ui-id-34_accNbr" aria-labelledby="jqh_ui-id-34_accNbr"><span class="js-accNbr">ZW947889</span></td></tr><tr role="row" id="5" tabindex="-1" class="jqgrow" data-level="0" aria-level="0" aria-expanded="true"><td role="gridcell" style="white-space:nowrap;display:none;" title="5" aria-describedby="ui-id-34_id" aria-labelledby="jqh_ui-id-34_id">5</td><td role="gridcell" style="white-space:nowrap;" title="B" aria-describedby="ui-id-34_offerName" aria-labelledby="jqh_ui-id-34_offerName"><div class="tree-wrap" style="width:18px;"><div style="margin-left:0px;" class=" tree-leaf "></div></div>
          <span class="cell-wrapper leaf"><span searchvalue="ZD989009">B</span></span></td>
          <td role="gridcell" style="white-space:nowrap;" title="ZD989009" aria-describedby="ui-id-34_accNbr" aria-labelledby="jqh_ui-id-34_accNbr"><span class="js-accNbr">ZD989009</span></td></tr><tr role="row" id="6" tabindex="-1" class="jqgrow" data-level="0" aria-level="0" aria-expanded="true"><td role="gridcell" style="white-space:nowrap;display:none;" title="6" aria-describedby="ui-id-34_id" aria-labelledby="jqh_ui-id-34_id">6</td><td role="gridcell" style="white-space:nowrap;" title="B" aria-describedby="ui-id-34_offerName" aria-labelledby="jqh_ui-id-34_offerName"><div class="tree-wrap" style="width:18px;"><div style="margin-left:0px;" class=" tree-leaf "></div></div>
            <span class="cell-wrapper leaf"><span searchvalue="ZF365801">B</span></span></td>
            <td role="gridcell" style="white-space:nowrap;" title="ZF365801" aria-describedby="ui-id-34_accNbr" aria-labelledby="jqh_ui-id-34_accNbr"><span class="js-accNbr">ZF365801</span></td></tr></tbody></table>

取：<span searchvalue="ZD989009">B</span>
求：取到三个：“B”的searchvalue值

补充内容 (2022-6-20 18:24):
同时取到三个 B 的值

r7ncmski

用正则不行么

初学E程序

/html/body/table/tbody/tr[5]/td[2]

初学E程序

//*[@id="6"]/td[3]/span
/html/body/table/tbody/tr[5]/td[3]/span
获取的第三个ZF365801值

Z隐

初学E程序 发表于 2022-6-20 18:22
//*[@id="6"]/td[3]/span
/html/body/table/tbody/tr[5]/td[3]/span
获取的第三个ZF365801值

需要同时取到三个B的值。不是第三个

初学E程序

int number=elements.size(); #获取元素数量 然后循环取出来就行

Z隐

初学E程序 发表于 2022-6-20 18:31
int number=elements.size(); #获取元素数量 然后循环取出来就行

还有别的办法么？

初学E程序

Z隐 发表于 2022-6-20 18:33
还有别的办法么？

你好，我不会，我在网上找到了这个方法你可以试试
https://lrbbfc.blog.csdn.net/article/details/105686976?spm=1001.2101.3001.6650.3&utm_medium=distribute.pc_relevant.none-task-blog-2%7Edefault%7ECTRLIST%7Edefault-3-105686976-blog-97741771.pc_relevant_downloadblacklistv1&depth_1-utm_source=distribute.pc_relevant.none-task-blog-2%7Edefault%7ECTRLIST%7Edefault-3-105686976-blog-97741771.pc_relevant_downloadblacklistv1&utm_relevant_index=6

那小子少跟弦

//tr[position()>=3]/td[2]//span/text()

帝都骑士

我先说一下 选择页面上标签的发展史吧 用正则选择>用xpath>用css选择器, 那为什么xpath和正则选择被淘汰了? 就是因为不好用, 我推荐楼主也用css选择器, 学习下beautiful soup啥的

[Python] 纯文本查看 复制代码

parse_html(driver.page_source.encode('utf-8') )


def parse_html(html):#解析网页
        soup = BeautifulSoup(html,'lxml') # 可更改

        # 公式:div#app figure.loaded img.normal-img
        for element in soup.select("div#app figure.loaded img.normal-img"):
                download("https:" + element["src"] , "B站专栏")