如何使用selenium和python点击像facebook群组发布按钮这样的网页隐藏按钮

Question

hi我试着使用了这段代码，代码中的登录部分可以正常工作，但代码中的post部分不工作：(我上一次尝试使用python2.7、3.4.0和3.4.1firefox浏览器，但它不起作用，

from selenium import webdriver
from selenium.webdriver.common.keys import Keys
from selenium.webdriver.support.ui import WebDriverWait # available since 2.4.0
usr = raw_input('--> ')
pwd = raw_input('--> ')
poo = raw_input('--> ')
url = 'https://www.facebook.com/groups/<group id you are a member in>'
driver = webdriver.Firefox()
# or you can use Chrome(executable_path="/usr/bin/chromedriver")
driver.get(url)
assert "Facebook" in driver.title
elem = driver.find_element_by_id("email")
elem.send_keys(usr)
elem = driver.find_element_by_id("pass")
elem.send_keys(pwd)
elem.send_keys(Keys.RETURN)
driver.implicitly_wait(20)
elem = driver.find_element_by_css_selector(".input.textInput")
elem.send_keys(poo)
driver.implicitly_wait(20)
elem = driver.find_element_by_css_selector(".selected")
elem.send_keys(Keys.RETURN)
elem.click()

Answer 1

例如，在Selenium IDE中，如果您知道按钮的值或标题，则可以调用它：

Command   |   click
Target    |   //input[@value='PUT_A_VALUE_HERE' and @title='PUT_A_TITLE_HERE']