Python selenium 如何只循环包含特定 class 名称的行

Question

设置：

我正在使用 Python + Selenium 来完成一些工作。

我有一个 table 具有以下 html,

<tbody>
    <tr bgcolor="white" class="TRNORM TRCOLHEADER">...</tr>
    <tr bgcolor="white" class="TRNORM cROW">...</tr>
    <tr bgcolor="white" class="TRNORM cROW">...</tr>
    <tr bgcolor="white" class="TRNORM">...</tr>
    <tr bgcolor="white" class="TRNORM">...</tr> 
</tbody>

然后我使用以下代码遍历行，

table = browser.find_element_by_css_selector('#formWrapper > tbody > tr:nth-child(3) > td > table > tbody')
for row in table.find_elements_by_xpath('tr'):
    # code for row follows

问题

我只需要循环 class="TRNORM cROW"。

我该怎么做？

Answer 1

使用以下 xpath 将 select 行仅包含 class="TRNORM cROW"

for row in table.find_elements_by_xpath('.//tr[@class="TRNORM cROW"]'):

或以下 css selector 将 select 行仅包含 class="TRNORM cROW"

for row in table.find_elements_by_css_selector("tr[class='TRNORM cROW']"):

Answer 2

要仅使用 class="TRNORM cROW" 遍历元素，您可以使用以下任一方法 :

使用css_selector:

for row in browser.find_elements_by_css_selector("#formWrapper > tbody > tr:nth-child(3) > td > table > tbody tr.TRNORM.cROW"):
  # code for row follows

使用xpath:

for row in browser.find_elements_by_xpath("//td/table/tbody//tr[@class='TRNORM cROW']"):
  # code for row follows

理想情况下，您必须为 visibility_of_all_elements_located() 引入并且您可以使用以下任一项 :

使用CSS_SELECTOR:

for row in WebDriverWait(browser, 20).until(EC.visibility_of_all_elements_located((By.CSS_SELECTOR, "#formWrapper > tbody > tr:nth-child(3) > td > table > tbody tr.TRNORM.cROW"))) :
  # code for row follows

使用XPATH:

for row in WebDriverWait(browser, 20).until(EC.visibility_of_all_elements_located((By.XPATH, "//td/table/tbody//tr[@class='TRNORM cROW']"))):
  # code for row follows

注意：您必须添加以下导入：

from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.common.by import By
from selenium.webdriver.support import expected_conditions as EC
# code for row follows

Python selenium 如何只循环包含特定 class 名称的行

Python selenium how to loop only over rows containing specific class name

python

selenium

xpath

css-selectors

webdriverwait