selenium运营异常报错，咋回事？

测试积点老人

如题，详细代码如下：
运行代码：

1. from selenium import webdriver
   
2. from selenium.webdriver import ActionChains
   
3. driver=webdriver.Ie()
   
4. driver.get("http://10.3.231.64:7001/pension_sec/")
   
5. driver.switch_to.frame('fraInterface')
   
6. driver.implicitly_wait(10)
   
7. user=driver.find_element_by_id("UserCode2")
   
8. ActionChains(driver).click_and_hold(user).send_keys_to_element(user,"001").perform()
   
9. -----

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运行异常结果：

1. Message: Currently focused window has been closed.

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求教！

yb389973788

应该是fraInterface这个界面关闭了啊

qqq911

聚焦的窗口被关闭了

jingzizx

窗口关闭