前言

前面都是点点滴滴的介绍selenium的一些api使用方法，那么selenium的api到底有多少呢？本篇就叫大家如何去查看selenium api，不求人，无需伸手找人要，在自己电脑就有。

pydoc是Python自带的模块，主要用于从python模块中自动生成文档，这些文档可以基于文本呈现的、也可以生成WEB 页面的，还可以在服务器上以浏览器的方式呈现！

一、pydoc

1.到底什么是pydoc? ,这个是准确的解释：Documentation generator and online help system. pydoc是Python自带的模块，主要用于从python模块中自动生成文档，这些文档可以基于文本呈现的、也可以生成WEB 页面的，还可以在服务器上以浏览器的方式呈现！简而言之，就是帮你从代码和注释自动生成文档的工具。

2.举个栗子，我需要查看python里面open函数的功能和语法，打开cmd,输入:python -m pydoc open

3.-m参数：python以脚本方法运行模块

>>python -m pydoc open

那么问题来了，这个是已经知道有这个函数，去查看它的功能，selenium里面不知道到底有多少个函数或方法，那如何查看呢？

二、启动server

1.打开cmd命令行，输入：python -m pydoc -p 6666

2.-p参数：这个表示在本机上启动服务

3.6666参数：这个是服务端口号，随意设置

打开后，界面会出现一个地址：http://localhost:6666/,在浏览器直接打开

三、浏览器查看文档

1.在浏览器输入：http://localhost:6666/

2.Built-in Moudles ：这个是python自带的模块

四、webdriver API

1.找到这个路径：python2.7\lib\site-packages，点开selenium

2.打开的selenium>webdriver>firefox>webdriver,最终路径：http://localhost:6666/selenium.webdriver.firefox.webdriver.html

3.最终看到的这些就是selenium的webdriver API帮助文档啦

add_cookie(self, cookie_dict)
Adds a cookie to your current session.

:Args:
- cookie_dict: A dictionary object, with required keys - "name" and "value";
optional keys - "path", "domain", "secure", "expiry"

Usage:
driver.add_cookie({'name' : 'foo', 'value' : 'bar'})
driver.add_cookie({'name' : 'foo', 'value' : 'bar', 'path' : '/'})
driver.add_cookie({'name' : 'foo', 'value' : 'bar', 'path' : '/', 'secure':True})

back(self)
Goes one step backward in the browser history.

:Usage:
driver.back()

close(self)
Closes the current window.

:Usage:
driver.close()

create_web_element(self, element_id)
Creates a web element with the specified element_id.

delete_all_cookies(self)
Delete all cookies in the scope of the session.

:Usage:
driver.delete_all_cookies()

delete_cookie(self, name)
Deletes a single cookie with the given name.

:Usage:
driver.delete_cookie('my_cookie')

execute(self, driver_command, params=None)
Sends a command to be executed by a command.CommandExecutor.

:Args:
- driver_command: The name of the command to execute as a string.
- params: A dictionary of named parameters to send with the command.

:Returns:
The command's JSON response loaded into a dictionary object.

execute_async_script(self, script, *args)
Asynchronously Executes JavaScript in the current window/frame.

:Args:
- script: The JavaScript to execute.
- \*args: Any applicable arguments for your JavaScript.

:Usage:
driver.execute_async_script('document.title')

execute_script(self, script, *args)
Synchronously Executes JavaScript in the current window/frame.

:Args:
- script: The JavaScript to execute.
- \*args: Any applicable arguments for your JavaScript.

:Usage:
driver.execute_script('document.title')

file_detector_context(*args, **kwds)
Overrides the current file detector (if necessary) in limited context.
Ensures the original file detector is set afterwards.

Example:

with webdriver.file_detector_context(UselessFileDetector):
someinput.send_keys('/etc/hosts')

:Args:
- file_detector_class - Class of the desired file detector. If the class is different
from the current file_detector, then the class is instantiated with args and kwargs
and used as a file detector during the duration of the context manager.
- args - Optional arguments that get passed to the file detector class during
instantiation.
- kwargs - Keyword arguments, passed the same way as args.

find_element(self, by='id', value=None)
'Private' method used by the find_element_by_* methods.

:Usage:
Use the corresponding find_element_by_* instead of this.

:rtype: WebElement

find_element_by_class_name(self, name)
Finds an element by class name.

:Args:
- name: The class name of the element to find.

:Usage:
driver.find_element_by_class_name('foo')

find_element_by_css_selector(self, css_selector)
Finds an element by css selector.

:Args:
- css_selector: The css selector to use when finding elements.

:Usage:
driver.find_element_by_css_selector('#foo')

find_element_by_id(self, id_)
Finds an element by id.

:Args:
- id\_ - The id of the element to be found.

:Usage:
driver.find_element_by_id('foo')

find_element_by_link_text(self, link_text)
Finds an element by link text.

:Args:
- link_text: The text of the element to be found.

:Usage:
driver.find_element_by_link_text('Sign In')

find_element_by_name(self, name)
Finds an element by name.

:Args:
- name: The name of the element to find.

:Usage:
driver.find_element_by_name('foo')

find_element_by_partial_link_text(self, link_text)
Finds an element by a partial match of its link text.

:Args:
- link_text: The text of the element to partially match on.

:Usage:
driver.find_element_by_partial_link_text('Sign')

find_element_by_tag_name(self, name)
Finds an element by tag name.

:Args:
- name: The tag name of the element to find.

:Usage:
driver.find_element_by_tag_name('foo')

find_element_by_xpath(self, xpath)
Finds an element by xpath.

:Args:
- xpath - The xpath locator of the element to find.

:Usage:
driver.find_element_by_xpath('//div/td[1]')

find_elements(self, by='id', value=None)
'Private' method used by the find_elements_by_* methods.

:Usage:
Use the corresponding find_elements_by_* instead of this.

:rtype: list of WebElement

find_elements_by_class_name(self, name)
Finds elements by class name.

:Args:
- name: The class name of the elements to find.

:Usage:
driver.find_elements_by_class_name('foo')

find_elements_by_css_selector(self, css_selector)
Finds elements by css selector.

:Args:
- css_selector: The css selector to use when finding elements.

:Usage:
driver.find_elements_by_css_selector('.foo')

find_elements_by_id(self, id_)
Finds multiple elements by id.

:Args:
- id\_ - The id of the elements to be found.

:Usage:
driver.find_elements_by_id('foo')

find_elements_by_link_text(self, text)
Finds elements by link text.

:Args:
- link_text: The text of the elements to be found.

:Usage:
driver.find_elements_by_link_text('Sign In')

find_elements_by_name(self, name)
Finds elements by name.

:Args:
- name: The name of the elements to find.

:Usage:
driver.find_elements_by_name('foo')

find_elements_by_partial_link_text(self, link_text)
Finds elements by a partial match of their link text.

:Args:
- link_text: The text of the element to partial match on.

:Usage:
driver.find_element_by_partial_link_text('Sign')

find_elements_by_tag_name(self, name)
Finds elements by tag name.

:Args:
- name: The tag name the use when finding elements.

:Usage:
driver.find_elements_by_tag_name('foo')

find_elements_by_xpath(self, xpath)
Finds multiple elements by xpath.

:Args:
- xpath - The xpath locator of the elements to be found.

:Usage:
driver.find_elements_by_xpath("//div[contains(@class, 'foo')]")

forward(self)
Goes one step forward in the browser history.

:Usage:
driver.forward()

get(self, url)
Loads a web page in the current browser session.

get_cookie(self, name)
Get a single cookie by name. Returns the cookie if found, None if not.

:Usage:
driver.get_cookie('my_cookie')

get_cookies(self)
Returns a set of dictionaries, corresponding to cookies visible in the current session.

:Usage:
driver.get_cookies()

get_log(self, log_type)
Gets the log for a given log type

:Args:
- log_type: type of log that which will be returned

:Usage:
driver.get_log('browser')
driver.get_log('driver')
driver.get_log('client')
driver.get_log('server')

get_screenshot_as_base64(self)
Gets the screenshot of the current window as a base64 encoded string
which is useful in embedded images in HTML.

:Usage:
driver.get_screenshot_as_base64()

get_screenshot_as_file(self, filename)
Gets the screenshot of the current window. Returns False if there is
any IOError, else returns True. Use full paths in your filename.

:Args:
- filename: The full path you wish to save your screenshot to.

:Usage:
driver.get_screenshot_as_file('/Screenshots/foo.png')

get_screenshot_as_png(self)
Gets the screenshot of the current window as a binary data.

:Usage:
driver.get_screenshot_as_png()

get_window_position(self, windowHandle='current')
Gets the x,y position of the current window.

:Usage:
driver.get_window_position()

get_window_size(self, windowHandle='current')
Gets the width and height of the current window.

:Usage:
driver.get_window_size()

implicitly_wait(self, time_to_wait)
Sets a sticky timeout to implicitly wait for an element to be found,
or a command to complete. This method only needs to be called one
time per session. To set the timeout for calls to
execute_async_script, see set_script_timeout.

:Args:
- time_to_wait: Amount of time to wait (in seconds)

:Usage:
driver.implicitly_wait(30)

maximize_window(self)
Maximizes the current window that webdriver is using

refresh(self)
Refreshes the current page.

:Usage:
driver.refresh()

save_screenshot = get_screenshot_as_file(self, filename)
Gets the screenshot of the current window. Returns False if there is
any IOError, else returns True. Use full paths in your filename.

:Args:
- filename: The full path you wish to save your screenshot to.

:Usage:
driver.get_screenshot_as_file('/Screenshots/foo.png')

set_page_load_timeout(self, time_to_wait)
Set the amount of time to wait for a page load to complete
before throwing an error.

:Args:
- time_to_wait: The amount of time to wait

:Usage:
driver.set_page_load_timeout(30)

set_script_timeout(self, time_to_wait)
Set the amount of time that the script should wait during an
execute_async_script call before throwing an error.

:Args:
- time_to_wait: The amount of time to wait (in seconds)

:Usage:
driver.set_script_timeout(30)

set_window_position(self, x, y, windowHandle='current')
Sets the x,y position of the current window. (window.moveTo)

:Args:
- x: the x-coordinate in pixels to set the window position
- y: the y-coordinate in pixels to set the window position

:Usage:
driver.set_window_position(0,0)

set_window_size(self, width, height, windowHandle='current')
Sets the width and height of the current window. (window.resizeTo)

:Args:
- width: the width in pixels to set the window to
- height: the height in pixels to set the window to

:Usage:
driver.set_window_size(800,600)

start_client(self)
Called before starting a new session. This method may be overridden
to define custom startup behavior.

start_session(self, desired_capabilities, browser_profile=None)
Creates a new session with the desired capabilities.

:Args:
- browser_name - The name of the browser to request.
- version - Which browser version to request.
- platform - Which platform to request the browser on.
- javascript_enabled - Whether the new session should support JavaScript.
- browser_profile - A selenium.webdriver.firefox.firefox_profile.FirefoxProfile object. Only used if Firefox is requested.

stop_client(self)
Called after executing a quit command. This method may be overridden
to define custom shutdown behavior.

switch_to_active_element(self)
Deprecated use driver.switch_to.active_element

switch_to_alert(self)
Deprecated use driver.switch_to.alert

switch_to_default_content(self)
Deprecated use driver.switch_to.default_content

switch_to_frame(self, frame_reference)
Deprecated use driver.switch_to.frame

switch_to_window(self, window_name)
Deprecated use driver.switch_to.window

Data descriptors inherited from selenium.webdriver.remote.webdriver.WebDriver:

__dict__
dictionary for instance variables (if defined)

__weakref__
list of weak references to the object (if defined)

application_cache
Returns a ApplicationCache Object to interact with the browser app cache

current_url
Gets the URL of the current page.

:Usage:
driver.current_url

current_window_handle
Returns the handle of the current window.

:Usage:
driver.current_window_handle

desired_capabilities
returns the drivers current desired capabilities being used

file_detector

log_types
Gets a list of the available log types

:Usage:
driver.log_types

mobile

name
Returns the name of the underlying browser for this instance.

:Usage:
- driver.name

orientation
Gets the current orientation of the device

:Usage:
orientation = driver.orientation

page_source
Gets the source of the current page.

:Usage:
driver.page_source

switch_to

title
Returns the title of the current page.

:Usage:
driver.title

window_handles
Returns the handles of all windows within the current session.

:Usage:
driver.window_handles

小编后续有空再翻译下吧，英文水平有限。在学习过程中有遇到疑问的，可以加selenium（python+java） QQ群交流:232607095

python2.7\lib\site-packagespython2.7\lib\site-packages