selenium.模拟键盘操作（Keys）

Keys源码：

    NULL = 'ue000'
    CANCEL = 'ue001'            # ^break
    HELP = 'ue002'
    BACKSPACE = 'ue003'
    BACK_SPACE = BACKSPACE       #删除键
    TAB = 'ue004'               #TAB键
    CLEAR = 'ue005'  
    RETURN = 'ue006'
    ENTER = 'ue007'             #回车键
    SHIFT = 'ue008'             #Shift键
    LEFT_SHIFT = SHIFT
    CONTROL = 'ue009'
    LEFT_CONTROL = CONTROL       #Ctrl 键
    ALT = 'ue00a'               #Alt 键
    LEFT_ALT = ALT
    PAUSE = 'ue00b'
    ESCAPE = 'ue00c'            #ECS键
    SPACE = 'ue00d'             #空格键 
    PAGE_UP = 'ue00e'           #PgUp 键
    PAGE_DOWN = 'ue00f'         #PgDwon 键
    END = 'ue010'               #END 键
    HOME = 'ue011'              #HOME 键
    LEFT = 'ue012'              #左键
    ARROW_LEFT = LEFT  
    UP = 'ue013'                #上键
    ARROW_UP = UP   
    RIGHT = 'ue014'
    ARROW_RIGHT = RIGHT          #右键
    DOWN = 'ue015'              #下键
    ARROW_DOWN = DOWN  
    INSERT = 'ue016'            #insert键 
    DELETE = 'ue017'            #del键

    SEMICOLON = 'ue018'         #';'键
    EQUALS = 'ue019'            #'='键


　　#数字键盘
    NUMPAD0 = 'ue01a'           # number pad keys
    NUMPAD1 = 'ue01b'
    NUMPAD2 = 'ue01c'
    NUMPAD3 = 'ue01d'
    NUMPAD4 = 'ue01e'
    NUMPAD5 = 'ue01f'
    NUMPAD6 = 'ue020'
    NUMPAD7 = 'ue021'
    NUMPAD8 = 'ue022'
    NUMPAD9 = 'ue023'
    MULTIPLY = 'ue024'          # '*' 键
    ADD = 'ue025'               # '+' 键
    SEPARATOR = 'ue026'         #','键
    SUBTRACT = 'ue027'          # '-' 键
    DECIMAL = 'ue028'           # '.'键
    DIVIDE = 'ue029'            #'/'键

    F1 = 'ue031'                # function  keys
    F2 = 'ue032'
    F3 = 'ue033'
    F4 = 'ue034'
    F5 = 'ue035'
    F6 = 'ue036'
    F7 = 'ue037'
    F8 = 'ue038'
    F9 = 'ue039'
    F10 = 'ue03a'
    F11 = 'ue03b'
    F12 = 'ue03c'

    META = 'ue03d'
    COMMAND = 'ue03d'

组合键：

send_keys(Keys.BACK_SPACE)   删除键（BackSpace） 
send_keys(Keys.SPACE)        空格键(Space) 
send_keys(Keys.TAB)          制表键(Tab) 
send_keys(Keys.ESCAPE)       回退键（Esc） 
send_keys(Keys.ENTER)        回车键（Enter） 
send_keys(Keys.CONTROL,'a')  全选（Ctrl+A） 
send_keys(Keys.CONTROL,'c')  复制（Ctrl+C）
send_keys(Keys.CONTROL,'v')  粘贴（Ctrl+V）
send_keys(Keys.CONTROL,'x')  剪切（Ctrl+X）

非组合键：

Keys.ENTER           回车键 
Keys.BACK_SPACE      删除键 
Keys.SPACE           空格键
Keys.TAB             制表键 
Keys.ESCAPE          回退键 
Keys.F5              刷新键 

百度首页做个练习，效果如GIF：

from selenium.webdriver.common.action_chains import ActionChains
from selenium.webdriver.common.keys import Keys
from selenium import webdriver
from time import sleep

driver = webdriver.Chrome()
action = ActionChains(driver)
driver.get('https://www.baidu.com')

mov = driver.find_element_by_link_text('设置')
action.move_to_element(mov).perform()
sleep(1)
action.move_to_element_with_offset(mov, 0, 60).click().perform()

sleep(1)
input01 = driver.find_element_by_xpath('//*[@id="adv_keyword"]')
input02 = driver.find_element_by_xpath('//*[@id="adv-setting-2"]/input')
input03 = driver.find_element_by_xpath('//*[@id="adv-setting-3"]/input')
input04 = driver.find_element_by_xpath('//*[@id="advanced"]/div/form/div/table/tbody/tr[4]/td[2]/input')

input01.send_keys("云想衣裳花想容")
sleep(1)
input01.send_keys(Keys.CONTROL, 'a')
input01.send_keys(Keys.BACK_SPACE)
sleep(1)
input02.send_keys("云想衣裳花想容,春风拂槛露华浓。")
sleep(1)
input03.send_keys(Keys.TAB, "若非群玉山头见，会向瑶台月下逢。")
sleep(1)

driver.quit()