selenium操作測試系統查詢，下載表格

import time
from selenium import webdriver
from selenium.webdriver import ActionChains


class Bank(object):
    def __init__(self):
        self.url = 'https://cbank.jsbchina.cn/corporDemo/'
        # 創建瀏覽器對象
        self.driver = webdriver.Chrome()
        # 設置瀏覽器窗口最大化
        self.driver.maximize_window()
        # 等待時間
        self.waiting_time = 0.2

    def login(self):
        # 打開網頁
        self.driver.get(self.url)
        time.sleep(self.waiting_time)
        # 點擊登錄
        self.driver.find_element_by_class_name('logon_input').click()
        time.sleep(self.waiting_time)
        # 點擊關閉公告
        self.driver.find_element_by_class_name('spread_close').click()
        time.sleep(self.waiting_time)
        # 點擊賬戶管理
        self.driver.find_elements_by_xpath("//div[@id='menu']/ul[@class='menu']/li")[1].click()
        time.sleep(self.waiting_time)
        # 鼠標懸停在賬戶查詢
        ActionChains(self.driver).move_to_element(self.driver.find_elements_by_xpath("//div[@id='menu_item']/ul/li")[0]).perform()
        time.sleep(self.waiting_time)
        # 點擊賬戶明細查詢
        self.driver.find_elements_by_xpath("//div[@id='item_detail']/ul/li")[1].click()
        # 操作frame
        self.driver.switch_to.frame('mainFrame')
        time.sleep(self.waiting_time)
        # 點擊選擇銀行卡
        self.driver.find_element_by_id('searchAccountDiv').click()
        time.sleep(self.waiting_time)
        # 選擇銀行卡
        self.driver.find_elements_by_xpath("//*[@class='select_ul1']/li")[10].click()
        # 設置查找起始日期
        time.sleep(self.waiting_time)
        self.driver.execute_script("arguments[0].value = '20150812';", self.driver.find_element_by_id("beginDate"))
        # 設置查找結束日期
        time.sleep(self.waiting_time)
        self.driver.execute_script("arguments[0].value = '20150812';", self.driver.find_element_by_id("endDate"))
        time.sleep(self.waiting_time)
        # 點擊查詢
        self.driver.find_element_by_id('searchButton').click()
        time.sleep(2)
        # 點擊下載excel表格
        self.driver.find_element_by_id('downloadButton').click()
        # 操作該frame的父節點
        self.driver.switch_to.parent_frame()
        time.sleep(10)
        self.driver.quit()


if __name__ == '__main__':
    bank = Bank()
    bank.login()