Selenium WebDriver-通過頁面標題切換窗口

selenium webdriver可以通過獲取頁面標題，再跟據標題去切換瀏覽器窗口，代碼如下：

#encoding=utf-8
import unittest
import time
import chardet
from selenium import webdriver
 
class VisitSogouByIE(unittest.TestCase):

    def setUp(self):
        # 啟動chrome瀏覽器
        self.driver = webdriver.Chrome(executable_path = "e:\\chromedriver")

    def test_operateWindowHandle(self):
        url = "http://www.baidu.com"
        self.driver.get(url)
        # 獲取當前窗口句柄
        now_handle = self.driver.current_window_handle
        # 打印當前獲取的窗口句柄
        print now_handle
        # 百度搜索輸入框中輸入“selenium”
        self.driver.find_element_by_id("kw").send_keys("w3cschool")
        # 點擊搜索按鈕
        self.driver.find_element_by_id("su").click()
        # 導入time包
        import time
        # 等待3秒，以便網頁加載完成
        time.sleep(3)
        # 點擊w3school在線教育鏈接
        self.driver.find_element_by_xpath('//div[@id="1"]//a[text()="w3"]').click()
        time.sleep(5)
        # 獲取所有窗口句柄
        all_handles = self.driver.window_handles
        # 循環遍歷所有新打開的窗口句柄，也就是說不包括主窗口
        for handle in all_handles:            
            self.driver.switch_to.window(handle)
            print type(self.driver.title)
            print self.driver.title
            if self.driver.title == u"w3school 在線教程":
                # 點擊HTML5鏈接
                self.driver.find_element_by_link_text('HTML5').click()
                time.sleep(3)
            if self.driver.title == u"w3cschool_百度搜索":
               time.sleep(2)
               self.driver.find_element_by_id("kw").clear()
               self.driver.find_element_by_id("kw").send_keys(u"光榮之路自動化測試培訓")
               self.driver.find_element_by_id("su").click()
               time.sleep(5) 

    def tearDown(self):
        # 退出IE瀏覽器
        self.driver.quit()

if __name__ == '__main__':
    unittest.main()