参考：https://www.cnblogs.com/LanTianYou/p/5578621.html

# coding:utf8from time import sleepfrom selenium import webdriverimport jsonclass Hiblog(object):    def __init__(self, url1):        self.url = url1    def screen_shot(self):        driver = webdriver.PhantomJS()        driver.get(self.url)        driver.find_element_by_name("username").send_keys("admin")        driver.find_element_by_name("password").send_keys("admin")        driver.find_element_by_xpath("//button[@type='submit']").click()        driver.viewportSize = {
   'width': 1024, 'height': 800}        driver.maximize_window()        sleep(5)        driver.save_screenshot('test.png')        print(driver.title)if __name__ == "__main__":    url = "http://www.baidu.com"    screen = Hiblog(url)    screen.screen_shot()