from selenium import webdriver
from selenium.webdriver.common.by import By
driver=webdriver.Firefox()#启动浏览器
driver.implicitly_wait(15)#隐式等待，超时时间是15秒（每个元素都会最多等待15秒）
driver.get('http://localhost/upload/user.php')#打开前台登录页
# 1
driver.find_element(By.NAME,'username').send_keys('abc')#用户名
driver.find_element(By.NAME,'password').send_keys('123')#密码
driver.find_element(By.NAME,'submit').click()#立即登录
# 2
driver.find_element(By.NAME,'username').send_keys('def')#用户名
driver.find_element(By.NAME,'password').send_keys('456')#密码
driver.find_element(By.NAME,'submit').click()#立即登录
# 3
driver.find_element(By.NAME,'username').send_keys('ghi')#用户名
driver.find_element(By.NAME,'password').send_keys('789')#密码
driver.find_element(By.NAME,'submit').click()#立即登录
driver.quit()