class qichacha:
     def __init__(self):
         option = webdriver.ChromeOptions()
         option.add_argument('--start-maximized')  # 最大化
         option.add_argument('--headless')  # 無界面
         self.driver = webdriver.Chrome(chrome_options=option)
         self.serarch_engine_url="https://www.qichacha.com/"
         self.csv_file = os.getcwd() +"/"+'data.csv'
     def search_index(self):

         self.driver.get("https://www.qichacha.com/")
         response = self.driver.page_source.encode('utf-8')
         print(response)
         self.driver.find_element_by_id("searchkey").send_keys("百度")

         self.driver.find_element_by_id("V3_Search_bt").click()

         response=self.driver.page_source.encode('utf-8')