本节重点：
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l 键盘按键用法
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l 键盘组合键用法
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l send_keys() 输入中文运行报错问题
键盘按键键用法：
#coding=utf-8from selenium import webdriverfrom selenium.webdriver.common.keys import Keys #需要引入keys包import os,time
driver = webdriver.Firefox()
driver.get("http://passport.kuaibo.com/login/?referrer=http%3A%2F%2Fwebcloud.kuaibo.com%2F")
time.sleep(3)
driver.maximize_window() # 浏览器全屏显示driver.find_element_by_id("user_name").clear()
driver.find_element_by_id("user_name").send_keys("fnngj")#tab的定位相相于清除了密码框的默认提示信息，等同上面的clear()driver.find_element_by_id("user_name").send_keys(Keys.TAB)
time.sleep(3)
driver.find_element_by_id("user_pwd").send_keys("123456")#通过定位密码框，enter（回车）来代替登陆按钮driver.find_element_by_id("user_pwd").send_keys(Keys.ENTER)'''#也可定位登陆按钮，通过enter（回车）代替click()
driver.find_element_by_id("login").send_keys(Keys.ENTER)'''time.sleep(3)
time.sleep(3)
driver.quit()
要想调用键盘按键操作需要引入keys包：
from selenium.webdriver.common.keys import Keys
通过send_keys()调用按键：
send_keys(Keys.TAB) # TAB
send_keys(Keys.ENTER) # 回车
注意：这个操作和页面元素的遍历顺序有关，假如当前定位在账号输入框，按键盘的tab键后遍历的不是密码框，那就不法输入密码。 假如输入密码后，还有需要填写验证码，那么回车也起不到登陆的效果。
这并不是一种好的方法，这里只是为了验证单个按键的用法
键盘组合键用法：
#coding=utf-8from selenium import webdriverfrom selenium.webdriver.common.keys import Keysimport os,time
driver = webdriver.Firefox()
driver.get("http://www.baidu.com")#输入框输入内容driver.find_element_by_id("kw").send_keys("selenium")
time.sleep(3)#ctrl+a 全选输入框内容driver.find_element_by_id("kw").send_keys(Keys.CONTROL,'a')
time.sleep(3)#ctrl+x 剪切输入框内容driver.find_element_by_id("kw").send_keys(Keys.CONTROL,'x')
time.sleep(3)#输入框重新输入内容，搜索driver.find_element_by_id("kw").send_keys(u"虫师 cnblogs")
driver.find_element_by_id("su").click()
time.sleep(3)
driver.quit()
上面的操作没有实际意义，但向我们演示了键盘组合按键的用法。
输入中文问题
顺便解决了一个困扰我到现的一个输入中文件的问题。selenium2 python在send_keys()中输入中文一直报错，其实前面加个小u 就解决了：
send_keys(u"输入中文")
基本上键盘上所有的按键都可以模拟
module:selenium.webdriver.common.keys • class Keys() – NULL = u’ue000’ – CANCEL = u’ue001’ # ^break – HELP = u’ue002’ – BACK_SPACE = u’ue003’ – TAB = u’ue004’ – CLEAR = u’ue005’ – RETURN = u’ue006’ – ENTER = u’ue007’ – SHIFT = u’ue008’ – LEFT_SHIFT = u’ue008’ # alias – CONTROL = u’ue009’ – LEFT_CONTROL = u’ue009’ # alias – ALT = u’ue00a’ – LEFT_ALT = u’ue00a’ # alias – PAUSE = u’ue00b’ – ESCAPE = u’ue00c’ – SPACE = u’ue00d’ – PAGE_UP = u’ue00e’ – PAGE_DOWN = u’ue00f’ – END = u’ue010’ – HOME = u’ue011’ – LEFT = u’ue012’ – ARROW_LEFT = u’ue012’ # alias – UP = u’ue013’ – ARROW_UP = u’ue013’ # alias – RIGHT = u’ue014’ – ARROW_RIGHT = u’ue014’ # alias – DOWN = u’ue015’ – ARROW_DOWN = u’ue015’ # alias – INSERT = u’ue016’ – DELETE = u’ue017’ – SEMICOLON = u’ue018’ – EQUALS = u’ue019’ – NUMPAD0 = u’ue01a’ # numbe pad keys – NUMPAD1 = u’ue01b’ – NUMPAD2 = u’ue01c’ – NUMPAD3 = u’ue01d’ – NUMPAD4 = u’ue01e’ – NUMPAD5 = u’ue01f’ – NUMPAD6 = u’ue020’ – NUMPAD7 = u’ue021’ – NUMPAD8 = u’ue022’ – NUMPAD9 = u’ue023’ – MULTIPLY = u’ue024’ – ADD = u’ue025’ – SEPARATOR = u’ue026’ – SUBTRACT = u’ue027’ – DECIMAL = u’ue028’ – DIVIDE = u’ue029’ – F1 = u’ue031’ # function keys – F2 = u’ue032’ – F3 = u’ue033’ – F4 = u’ue034’ – F5 = u’ue035’ – F6 = u’ue036’ – F7 = u’ue037’ – F8 = u’ue038’ – F9 = u’ue039’ – F10 = u’ue03a’ – F11 = u’ue03b’ – F12 = u’ue03c’ – META = u’ue03d’ – COMMAND = u’ue03d’
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