Sleep(10) #表示強(qiáng)行等待10s再執(zhí)行下一句代碼

Driver.find_element_by_xpath(“xxxxxx”)

Driver=webdriver.Chrome()
Driver.implicitly_wait(10)#等待10s
Driver.get(“XXX”)

from selenium import webdriver 
from selenium.webdriver.support.wait importWebDriverWait 
from selenium.webdriver.support importexpected_conditions as EC 
from selenium.webdriver.common.by import By

locator=(By.XPATH,”xxxxxxx”)
d = webdriver.Chorme()
d.get(“http://www.sina.com”)
WebDriverWait(d,10,1).unitl(EC.presence_of_element_located(locator))
Print(“XXX”)

#coding=utf-8
from selenium import webdriver
from 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)
'''隱式等待和顯示等待都存在時(shí)，超時(shí)時(shí)間取二者中較大的'''
locator = (By.ID,'kw')
driver.get(base_url)

WebDriverWait(driver,10).until(EC.title_is(u"百度一下，你就知道"))
'''判斷title,返回布爾值'''

WebDriverWait(driver,10).until(EC.title_contains(u"百度一下"))
'''判斷title，返回布爾值'''

WebDriverWait(driver,10).until(EC.presence_of_element_located((By.ID,'kw')))
'''判斷某個(gè)元素是否被加到了dom樹里，并不代表該元素一定可見，如果定位到就返回WebElement'''

WebDriverWait(driver,10).until(EC.visibility_of_element_located((By.ID,'su')))
'''判斷某個(gè)元素是否被添加到了dom里并且可見，可見代表元素可顯示且寬和高都大于0'''

WebDriverWait(driver,10).until(EC.visibility_of(driver.find_element(by=By.ID,value='kw')))
'''判斷元素是否可見，如果可見就返回這個(gè)元素'''

WebDriverWait(driver,10).until(EC.presence_of_all_elements_located((By.CSS_SELECTOR,'.mnav')))
'''判斷是否至少有1個(gè)元素存在于dom樹中，如果定位到就返回列表'''

WebDriverWait(driver,10).until(EC.visibility_of_any_elements_located((By.CSS_SELECTOR,'.mnav')))
'''判斷是否至少有一個(gè)元素在頁面中可見，如果定位到就返回列表'''

WebDriverWait(driver,10).until(EC.text_to_be_present_in_element((By.XPATH,"http://*[@id='u1']/a[8]"),u'設(shè)置'))
'''判斷指定的元素中是否包含了預(yù)期的字符串，返回布爾值'''

WebDriverWait(driver,10).until(EC.text_to_be_present_in_element_value((By.CSS_SELECTOR,'#su'),u'百度一下'))
'''判斷指定元素的屬性值中是否包含了預(yù)期的字符串，返回布爾值'''

#WebDriverWait(driver,10).until(EC.frame_to_be_available_and_switch_to_it(locator))
'''判斷該frame是否可以switch進(jìn)去，如果可以的話，返回True并且switch進(jìn)去，否則返回False'''
#注意這里并沒有一個(gè)frame可以切換進(jìn)去

WebDriverWait(driver,10).until(EC.invisibility_of_element_located((By.CSS_SELECTOR,'#swfEveryCookieWrap')))
'''判斷某個(gè)元素在是否存在于dom或不可見,如果可見返回False,不可見返回這個(gè)元素'''
#注意#swfEveryCookieWrap在此頁面中是一個(gè)隱藏的元素

WebDriverWait(driver,10).until(EC.element_to_be_clickable((By.XPATH,"http://*[@id='u1']/a[8]"))).click()
'''判斷某個(gè)元素中是否可見并且是enable的，代表可點(diǎn)擊'''
driver.find_element_by_xpath("http://*[@id='wrapper']/div[6]/a[1]").click()
#WebDriverWait(driver,10).until(EC.element_to_be_clickable((By.XPATH,"http://*[@id='wrapper']/div[6]/a[1]"))).click()

#WebDriverWait(driver,10).until(EC.staleness_of(driver.find_element(By.ID,'su')))
'''等待某個(gè)元素從dom樹中移除'''
#這里沒有找到合適的例子

WebDriverWait(driver,10).until(EC.element_to_be_selected(driver.find_element(By.XPATH,"http://*[@id='nr']/option[1]")))
'''判斷某個(gè)元素是否被選中了,一般用在下拉列表'''

WebDriverWait(driver,10).until(EC.element_selection_state_to_be(driver.find_element(By.XPATH,"http://*[@id='nr']/option[1]"),True))
'''判斷某個(gè)元素的選中狀態(tài)是否符合預(yù)期'''

WebDriverWait(driver,10).until(EC.element_located_selection_state_to_be((By.XPATH,"http://*[@id='nr']/option[1]"),True))
'''判斷某個(gè)元素的選中狀態(tài)是否符合預(yù)期'''
driver.find_element_by_xpath(".//*[@id='gxszButton']/a[1]").click()

instance = WebDriverWait(driver,10).until(EC.alert_is_present())
'''判斷頁面上是否存在alert,如果有就切換到alert并返回alert的內(nèi)容'''
print instance.text
instance.accept()

driver.close()