#coding=utf-8from selenium import webdriverfrom selenium.webdriver.common.by import By from selenium.webdriver.support import expected_conditions as EC from selenium.webdriver.support.wait import WebDriverWait base_url = "http://www.baidu.com" driver = webdriver.Firefox() driver.implicitly_wait(5) '''隐式等待和显示等待都存在时,超时时间取二者中较大的''' locator = (By.ID,'kw') driver.get(base_url) WebDriverWait(driver,10).until(EC.title_is(u"百度一下,你就知道")) '''判断title,返回布尔值''' WebDriverWait(driver,10).until(EC.title_contains(u"百度一下")) '''判断title,返回布尔值''' WebDriverWait(driver,10).until(EC.presence_of_element_located((By.ID,'kw'))) '''判断某个元素是否被加到了dom树里,并不代表该元素一定可见,如果定位到就返回WebElement''' WebDriverWait(driver,10).until(EC.visibility_of_element_located((By.ID,'su'))) '''判断某个元素是否被添加到了dom里并且可见,可见代表元素可显示且宽和高都大于0''' WebDriverWait(driver,10).until(EC.visibility_of(driver.find_element(by=By.ID,value='kw'))) '''判断元素是否可见,如果可见就返回这个元素''' WebDriverWait(driver,10).until(EC.presence_of_all_elements_located((By.CSS_SELECTOR,'.mnav'))) '''判断是否至少有1个元素存在于dom树中,如果定位到就返回列表''' WebDriverWait(driver,10).until(EC.visibility_of_any_elements_located((By.CSS_SELECTOR,'.mnav'))) '''判断是否至少有一个元素在页面中可见,如果定位到就返回列表''' WebDriverWait(driver,10).until(EC.text_to_be_present_in_element((By.XPATH,"//*[@id='u1']/a[8]"),u'设置')) '''判断指定的元素中是否包含了预期的字符串,返回布尔值''' WebDriverWait(driver,10).until(EC.text_to_be_present_in_element_value((By.CSS_SELECTOR,'#su'),u'百度一下')) '''判断指定元素的属性值中是否包含了预期的字符串,返回布尔值''' #WebDriverWait(driver,10).until(EC.frame_to_be_available_and_switch_to_it(locator)) '''判断该frame是否可以switch进去,如果可以的话,返回True并且switch进去,否则返回False''' #注意这里并没有一个frame可以切换进去 WebDriverWait(driver,10).until(EC.invisibility_of_element_located((By.CSS_SELECTOR,'#swfEveryCookieWrap'))) '''判断某个元素在是否存在于dom或不可见,如果可见返回False,不可见返回这个元素''' #注意#swfEveryCookieWrap在此页面中是一个隐藏的元素 WebDriverWait(driver,10).until(EC.element_to_be_clickable((By.XPATH,"//*[@id='u1']/a[8]"))).click() '''判断某个元素中是否可见并且是enable的,代表可点击''' driver.find_element_by_xpath("//*[@id='wrapper']/div[6]/a[1]").click() #WebDriverWait(driver,10).until(EC.element_to_be_clickable((By.XPATH,"//*[@id='wrapper']/div[6]/a[1]"))).click() #WebDriverWait(driver,10).until(EC.staleness_of(driver.find_element(By.ID,'su'))) '''等待某个元素从dom树中移除''' #这里没有找到合适的例子 WebDriverWait(driver,10).until(EC.element_to_be_selected(driver.find_element(By.XPATH,"//*[@id='nr']/option[1]"))) '''判断某个元素是否被选中了,一般用在下拉列表''' WebDriverWait(driver,10).until(EC.element_selection_state_to_be(driver.find_element(By.XPATH,"//*[@id='nr']/option[1]"),True)) '''判断某个元素的选中状态是否符合预期''' WebDriverWait(driver,10).until(EC.element_located_selection_state_to_be((By.XPATH,"//*[@id='nr']/option[1]"),True)) '''判断某个元素的选中状态是否符合预期''' driver.find_element_by_xpath(".//*[@id='gxszButton']/a[1]").click() instance = WebDriverWait(driver,10).until(EC.alert_is_present()) '''判断页面上是否存在alert,如果有就切换到alert并返回alert的内容''' print instance.text instance.accept() driver.close()