selenium得到弹出窗口

# 获取当前的页面窗口
first_handle = brower.current_window_handle
handles = brower.window_handles
for i in handles:
    if i != first_handle:
    brower.close()   # 关闭当前窗口
    brower.switch_to.window(i)
    brower.find_element_by_class_name("button1").click()  # 点击提交按钮，提交数据
    time.sleep(2)