selenium--下拉列表选择

 <select name="ColumnId" id="columnOrd">
    <option value="2">选项1</option>
    <option value="3">选项2</option>
    <option value="4">选项3</option>
    <option value="9">选项4</option>
    <option value="10">选项5</option>
    <option value="20">选项6</option>

</select>

from selenium.webdriver.support.ui import Select 

Select(driver.find_element_by_id("columnOrd")).select_by_visible_text(u"选项1")