Question

我有一个带有桌子的网页。该表在第二个td列的每一行中都有一些值。我打算输出的值是在div标签内的span类中。检查html树我可以看到值，例如“名称”在第1行（tr [1]），第2列（TD [2]）例如。 HTML

<tr class="GAT4PNUFG GAT4PNUMG" __gwt_subrow="0" __gwt_row="0">
            <td class="GAT4PNUEG GAT4PNUGG GAT4PNUHG GAT4PNUNG">
            <td class="GAT4PNUEG GAT4PNUGG GAT4PNUNG">
                <div __gwt_cell="cell-gwt-uid-324" style="outline-style:none;">
                    <span class="linkhover" title="Name" style="white-space:nowrap;overflow:hidden;text-overflow:ellipsis;empty-cells:show;display:block;color:#00A;cursor:pointer;">Name</span>
                </div>
            </td>

我想遍历每一行的表格并打印出第2列中的值，td [2]

我正在使用Python和Selenium Webdriver

表格第1列第2列的完整Xpath是：

html/body/div[2]/div[2]/div/div[4]/div/div[2]/div/div[3]/div/div[5]/div/div[3]/div/div[4]/div/div[2]/div/div[4]/div/div[3]/div/div[2]/div/div/table/tbody/tr[1]/td[2]/div/span

我在想是否可以从表中开始，xpath如下： HTML /体/格[2] / DIV [2] / DIV / DIV [4] / DIV / DIV [2] / DIV / DIV [3] / DIV / DIV [5] / DIV / DIV [3] /格/ DIV [4] / DIV / DIV [2] / DIV / DIV [4] / DIV / DIV [3] / DIV / DIV [2] / DIV / DIV /表/ tbody的

然后我可以使用for循环并使用tr和td的索引例如，对于row1使用tr [i]，对于col2使用td [2]。

html/body/div[2]/div[2]/div/div[4]/div/div[2]/div/div[3]/div/div[5]/div/div[3]/div/div[4]/div/div[2]/div/div[4]/div/div[3]/div/div[2]/div/div/table/tbody/tr[i]/td[2]/div/span

如何遍历此表并打印出Span类标记的值，该值始终位于表的第2列？

我试图将表的开头变为变量然后我可以使用它来循环遍历行和列。我需要一些帮助。

table = self.driver.find_element(By.XPATH, 'html/body/div[2]/div[2]/div/div[4]/div/div[2]/div/div[3]/div/div[5]/div/div[3]/div/div[4]/div/div[2]/div/div[4]/div/div[3]/div/div[2]/div/div/table/tbody')

我忘了粘贴HTML。它是：

    <table cellspacing="0" style="table-layout: fixed; width: 100%;">
    <colgroup>
    <tbody>
        <tr class="GAT4PNUFG GAT4PNUMG" __gwt_subrow="0" __gwt_row="0">
            <td class="GAT4PNUEG GAT4PNUGG GAT4PNUHG GAT4PNUNG">
            <td class="GAT4PNUEG GAT4PNUGG GAT4PNUNG">
                <div __gwt_cell="cell-gwt-uid-324" style="outline-style:none;">
                    <span class="linkhover" title="Name" style="white-space:nowrap;overflow:hidden;text-overflow:ellipsis;empty-cells:show;display:block;color:#00A;cursor:pointer;">Name</span>
                </div>
            </td>
            <td class="GAT4PNUEG GAT4PNUGG GAT4PNUNG">
            <td class="GAT4PNUEG GAT4PNUGG GAT4PNUNG">
            <td class="GAT4PNUEG GAT4PNUGG GAT4PNUNG">
            <td class="GAT4PNUEG GAT4PNUGG GAT4PNUBH GAT4PNUNG">
        </tr>
        <tr class="GAT4PNUEH" __gwt_subrow="0" __gwt_row="1">
            <td class="GAT4PNUEG GAT4PNUFH GAT4PNUHG">
            <td class="GAT4PNUEG GAT4PNUFH">
                <div __gwt_cell="cell-gwt-uid-324" style="outline-style:none;">
                    <span class="linkhover" title="Address" style="white-space:nowrap;overflow:hidden;text-overflow:ellipsis;empty-cells:show;display:block;color:#00A;cursor:pointer;">Address</span>
                </div>
            </td>
            <td class="GAT4PNUEG GAT4PNUFH">
            <td class="GAT4PNUEG GAT4PNUFH">
            <td class="GAT4PNUEG GAT4PNUFH">
            <td class="GAT4PNUEG GAT4PNUFH GAT4PNUBH">
        </tr>
        <tr class="GAT4PNUFG" __gwt_subrow="0" __gwt_row="2">
            <td class="GAT4PNUEG GAT4PNUGG GAT4PNUHG">
            <td class="GAT4PNUEG GAT4PNUGG">
                <div __gwt_cell="cell-gwt-uid-324" style="outline-style:none;">
                    <span class="linkhover" title="DOB" style="white-space:nowrap;overflow:hidden;text-overflow:ellipsis;empty-cells:show;display:block;color:#00A;cursor:pointer;">DOB</span>
                </div>
            </td>
            <td class="GAT4PNUEG GAT4PNUGG">
            <td class="GAT4PNUEG GAT4PNUGG">
            <td class="GAT4PNUEG GAT4PNUGG">
            <td class="GAT4PNUEG GAT4PNUGG GAT4PNUBH">
        </tr>
        <tr class="GAT4PNUEH" __gwt_subrow="0" __gwt_row="3">
            ---
        <tr class="GAT4PNUFG" __gwt_subrow="0" __gwt_row="4">       
            ---
    </tbody>
</table>

Answer 1

开发人员已将ID放入表中。我现在有工作。它正在打印第2列中的所有单元格值。代码为：

table_id = self.driver.find_element(By.ID, 'data_configuration_feeds_ct_fields_body0')
rows = table_id.find_elements(By.TAG_NAME, "tr") # get all of the rows in the table
for row in rows:
    # Get the columns (all the column 2)        
    col = row.find_elements(By.TAG_NAME, "td")[1] #note: index start from 0, 1 is col 2
    print col.text #prints text from the element

Answer 2

您目前使用的XPath是非常脆弱的，因为它取决于完整的文档结构和元素的相对位置。它将来很容易破裂。

而是使用class或其他属性找到行。例如：

for row in driver.find_elements_by_css_selector("tr.GAT4PNUFG.GAT4PNUMG"):
    cell = row.find_elements_by_tag_name("td")[1]
    print(cell.text)

Python Selenium Webdriver如何在表中循环并打印出第2列的值

2 个答案: