Helium文档5-WebUI自动化-press模拟键盘按键输入技巧

前言

press方法是用来模拟键盘按键输入，可以组合使用，来模拟键盘输入，解决一些难定位的元素

入参介绍

以下是press源码中的函数介绍

def press(key):
：入参	:param key: Key or combination of keys to be pressed.
	Presses the given key or key combination. To press a normal letter key such
	as 'a' simply call `press` for it::
举例 1	press('a')
	You can also simulate the pressing of upper case characters that way::
举例2	press('A')
	The special keys you can press are those given by Selenium's class
	:py:class:`selenium.webdriver.common.keys.Keys`. Helium makes all those keys
	available through its namespace, so you can just use them without having to
	refer to :py:class:`selenium.webdriver.common.keys.Keys`. For instance, to
	press the Enter key::
举例3	press(ENTER)
	To press multiple keys at the same time, concatenate them with `+`. For
	example, to press Control + a, call::
举例4	press(CONTROL + 'a')
	"""
	_get_api_impl().press_impl(key)

以下是所有的入参关键字：

NULL = Keys.NULL

CANCEL = Keys.CANCEL

HELP = Keys.HELP

BACK_SPACE = Keys.BACK_SPACE

TAB = Keys.TAB

CLEAR = Keys.CLEAR

RETURN = Keys.RETURN

ENTER = Keys.ENTER

SHIFT = Keys.SHIFT

LEFT_SHIFT = Keys.LEFT_SHIFT

CONTROL = Keys.CONTROL

LEFT_CONTROL = Keys.LEFT_CONTROL

ALT = Keys.ALT

LEFT_ALT = Keys.LEFT_ALT

PAUSE = Keys.PAUSE

ESCAPE = Keys.ESCAPE

SPACE = Keys.SPACE

PAGE_UP = Keys.PAGE_UP

PAGE_DOWN = Keys.PAGE_DOWN

END = Keys.END

HOME = Keys.HOME

LEFT = Keys.LEFT

ARROW_LEFT = Keys.ARROW_LEFT

UP = Keys.UP

ARROW_UP = Keys.ARROW_UP

RIGHT = Keys.RIGHT

ARROW_RIGHT = Keys.ARROW_RIGHT

DOWN = Keys.DOWN

ARROW_DOWN = Keys.ARROW_DOWN

INSERT = Keys.INSERT

DELETE = Keys.DELETE

SEMICOLON = Keys.SEMICOLON

EQUALS = Keys.EQUALS

NUMPAD0 = Keys.NUMPAD0

NUMPAD1 = Keys.NUMPAD1

NUMPAD2 = Keys.NUMPAD2

NUMPAD3 = Keys.NUMPAD3

NUMPAD4 = Keys.NUMPAD4

NUMPAD5 = Keys.NUMPAD5

NUMPAD6 = Keys.NUMPAD6

NUMPAD7 = Keys.NUMPAD7

NUMPAD8 = Keys.NUMPAD8

NUMPAD9 = Keys.NUMPAD9

MULTIPLY = Keys.MULTIPLY

ADD = Keys.ADD

SEPARATOR = Keys.SEPARATOR

SUBTRACT = Keys.SUBTRACT

DECIMAL = Keys.DECIMAL

DIVIDE = Keys.DIVIDE

F1 = Keys.F1

F2 = Keys.F2

F3 = Keys.F3

F4 = Keys.F4

F5 = Keys.F5

F6 = Keys.F6

F7 = Keys.F7

F8 = Keys.F8

F9 = Keys.F9

F10 = Keys.F10

F11 = Keys.F11

F12 = Keys.F12

META = Keys.META

COMMAND = Keys.COMMAND

press案例分析

1、我们来介绍一下滚动页面的应用

代码：

start_chrome("https://www.icourse163.org/")
time.sleep(2)
wait_until(Text("学校").exists)
highlight(Text("学校"))
time.sleep(2)
click(Text("学校"))
press(END)
time.sleep(10)
kill_browser()

效果：

看到右侧滚动条已经滚动到最下方

2、利用TAB键切换位置

如下图，先定位“1”，press(TAB)，跳转到“贴吧搜索”，press(TAB)，跳转到“2”，press(TAB)，跳转到“3”