selenium的webdriver獲取一個元素之後，將會建立一個webelement對象，這個對象根據使用瀏覽器的不同，會變爲firefox的FirefoxWebElement或者chrome的ChromeWebElement
於是有必要對WebElement進行研究，檢查其所有屬性如下：
>>> dir(webdriver.firefox.webelement.FirefoxWebElement)
['__class__', '__delattr__', '__dict__', '__dir__', '__doc__', '__eq__', '__form
at__', '__ge__', '__getattribute__', '__gt__', '__hash__', '__init__', '__init_s
ubclass__', '__le__', '__lt__', '__module__', '__ne__', '__new__', '__reduce__',
'__reduce_ex__', '__repr__', '__setattr__', '__sizeof__', '__str__', '__subclas
shook__', '__weakref__', '_execute', '_upload', 'anonymous_children', 'clear', '
click', 'find_anonymous_element_by_attribute', 'find_element', 'find_element_by_
class_name', 'find_element_by_css_selector', 'find_element_by_id', 'find_element
_by_link_text', 'find_element_by_name', 'find_element_by_partial_link_text', 'fi
nd_element_by_tag_name', 'find_element_by_xpath', 'find_elements', 'find_element
s_by_class_name', 'find_elements_by_css_selector', 'find_elements_by_id', 'find_
elements_by_link_text', 'find_elements_by_name', 'find_elements_by_partial_link_
text', 'find_elements_by_tag_name', 'find_elements_by_xpath', 'get_attribute', '
get_property', 'id', 'is_displayed', 'is_enabled', 'is_selected', 'location', 'l
ocation_once_scrolled_into_view', 'parent', 'rect', 'screenshot', 'screenshot_as
_base64', 'screenshot_as_png', 'send_keys', 'size', 'submit', 'tag_name', 'text'
, 'value_of_css_property']
https://www.cnblogs.com/eastmount/p/4810690.html
這篇文章介紹了不少鼠標操作的例子。並且有調用的基本路徑。