案例：https://graph.qq.com/oauth2.0/show?which=Login&display=pc&response_type=code&state=08C6C76EB8B16191A1D2EFA0CD126B05EC247805F40F94D88426E403F8BEB5D2E3D71EAEA6DA10C12CA701BEC933A0AE&client_id=100273020&redirect_uri=https%3A%2F%2Fqq.jd.com%2Fnew%2Fqq%2Fcallback.action%3Fuuid%3Dec824212437246a19d7278781c0f1472
from selenium import webdriver
from time import sleep #
dx=webdriver.Chrome()
sleep(2)
dx.maximize_window()
dx.get('https://graph.qq.com/oauth2.0/show?which=Login&display=pc&response_type=code&state=08C6C76EB8B16191A1D2EFA0CD126B05EC247805F40F94D88426E403F8BEB5D2E3D71EAEA6DA10C12CA701BEC933A0AE&client_id=100273020&redirect_uri=https%3A%2F%2Fqq.jd.com%2Fnew%2Fqq%2Fcallback.action%3Fuuid%3Dec824212437246a19d7278781c0f1472')
sleep(2)
k=dx.find_element_by_id('ptlogin_iframe')
dx.switch_to.frame(k)
sleep(2)
dx.find_element_by_link_text('密码登录').click() #进框
sleep(2)
dx.switch_to.default_content() #退框
sleep(2)
dx.find_element_by_link_text('服务协议').click()