from selenium import webdriver
from selenium.webdriver.common.by import By
from selenium.webdriver.support.ui import WebDriverWait
from selenium.webdriver.support import expected_conditions as EC
driver=webdriver.Firefox()
driver.get('http://localhost/upload/admin/index.php')#ecshop后台页
driver.find_element(By.NAME,'username').send_keys('admin')#用户名
driver.find_element(By.NAME,'password').send_keys('admin123')#密码
driver.find_element(By.NAME,'captcha').send_keys('0')#验证码
driver.find_element(By.XPATH,'//input[@value="进入管理中心"]').click()
# 显式等待：等待一个frame（ID是header-frame）出现，并切换到子网页里
WebDriverWait(driver,16).until(EC.frame_to_be_available_and_switch_to_it((By.ID,'header-frame')))
# 点击“退出”
driver.find_element(By.LINK_TEXT,'退出').click()
driver.quit()