如何使用 xpath 查找类内部的值？（硒 Chrome 驱动程序）

Question

我正在尝试使用 ChromeDriver 从以下 html 代码中提取值“/mva/library/20120730/93135a040s.gif”：目前，我的代码：is_black_white = driver.find_elements_by_xpath("//div[@class='aj cw cy db ImgCaptionCntnrHover']/img[@data-filterwithidind='True']")x = is_black_white[0].get_attribute("title src")print(x)返回“无”。我感觉我已经很接近了。任何帮助将非常感激！谢谢！

Answer 1

xpath 不正确。您可以尝试这个解决方案。请注意，有一个双斜杠表示任何带有 img 标签的子节点。

WebDriverWait(driver, 30).until(EC.presence_of_all_elements_located((By.XPATH, "//div[@class='aj cw cy db ImgCaptionCntnrHover']//img")))

 

is_black_white = driver.find_elements_by_xpath("//div[@class='aj cw cy db ImgCaptionCntnrHover']//img")

print(len(is_black_white))

x = is_black_white[0].get_attribute("src")

print(x)

#Prints all the src urls

for ele in is_black_white:

    print(ele.get_attribute("src"))

输出：

4

https://www.mcmaster.com/mva/library/20120730/93135a040s.gif

https://www.mcmaster.com/mva/library/20120730/93135a040s.gif

https://www.mcmaster.com/mva/library/20120730/94735a040s.gif

https://www.mcmaster.com/mva/library/20120730/93135a040s.gif

https://www.mcmaster.com/mva/library/20120730/94735a040s.gif