Selenium，python 网页抓取

Question

我正在尝试从 HTML 表中提取数据。 成功计算了行，但是当我打印时它不断重复行。 谁能告诉我代码有什么问题？ 谢谢。

#counting length of row
rows = len(driver.find_elements_by_xpath('/html/body/form/fieldset/table[2]/tbody/tr/td[3]/table/tbody/tr[5]/td[2]/div/table[1]/tbody/tr[2]/td[1]/table[2]/tbody/tr'))
time.sleep(2)
print(rows)

for r in range(rows):
    value=driver.find_element_by_xpath('/html/body/form/fieldset/table[2]/tbody/tr/td[3]/table/tbody/tr[5]/td[2]/div/table[1]/tbody/tr[2]/td[1]/table[2]/tbody/tr["+str(r)+"]')
    print(value.text)


#Output:
18 #no of rows
Start of legal relation2/7/2018 #1st row
Start of legal relation2/7/2018
Start of legal relation2/7/2018
Start of legal relation2/7/2018
Start of legal relation2/7/2018
Start of legal relation2/7/2018
Start of legal relation2/7/2018
Start of legal relation2/7/2018
Start of legal relation2/7/2018
Start of legal relation2/7/2018
Start of legal relation2/7/2018
Start of legal relation2/7/2018
Start of legal relation2/7/2018
Start of legal relation2/7/2018
Start of legal relation2/7/2018
Start of legal relation2/7/2018
Start of legal relation2/7/2018
Start of legal relation2/7/2018
sample test case successfully completed

Answer 1

如果没有您提供的 URL，很难说出原因。但是，第一个tr 元素是[1]，所以我认为你的range 函数应该是range(1, rows + 1)。而且您处理此问题的方式似乎非常间接，因为您的第一个查询似乎已检索到您正在寻找的所有元素。那么为什么不只是以下呢？

elements = driver.find_elements_by_xpath('/html/body/form/fieldset/table[2]/tbody/tr/td[3]/table/tbody/tr[5]/td[2]/div/table[1]/tbody/tr[2]/td[1]/table[2]/tbody/tr')
#time.sleep(2) # what does this accomplish?
print(len(elements))

text_list = [element.text for element in elements] # list of strings