find_element_by_xpath与XPath表达式.//*[contains(text(), 'txt')]一起使用，以查找包含txt为文本的元素。
browser.find_element_by_xpath(
".//*[contains(text(), '15 Minute Stream Flow Data: USGS (FIFE)')]"
).click()
某些内容在文档加载后加载。我修改了代码以尝试10次（两次之间睡眠1秒）。
import time
from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.common.exceptions import NoSuchElementException
browser = webdriver.Firefox()
url = 'http://reverb.echo.nasa.gov/reverb/'
browser.get(url)
for i in range(10):
try:
browser.find_element_by_xpath(
".//*[contains(text(), '15 Minute Stream Flow Data: USGS (FIFE)')]"
).click()
break
except NoSuchElementException as e:
print('Retry in 1 second')
time.sleep(1)
else:
raise e
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