知乎的qq登录怎么用python和webdriver定位到“账号密码登录”？

Question

from selenium import webdriver
import time

driver = webdriver.Chrome()
driver.set_window_size(640, 960)
driver.get('http://m.zhihu.com/#signin')
driver.execute_script('$(".js-bindqq")[0].click()')
time.sleep(5)
driver.switch_to.window(driver.window_handles[-1])
driver.switch_to.frame(0)
print driver.find_element_by_id('switcher_plogin').text
driver.execute_script('$("#switcher_plogin")[0].click()')

上面的print能输出'帐号密码登录'，但是后面的click提示：WebDriverException: Message: unknown error: Cannot read property '0' of null

Answer 1

额，我傻了，直接
driver.findelementbyid('switcherplogin').click()
就行了呗。