配置好webdriver，用的是Chrome的
import cv2
import time
import numpy as np
from selenium import webdriver
from urllib import request
from selenium.webdriver.common.action_chains import ActionChains
brower = webdriver.Chrome()
def loadpage(userid, password):
url = "https://passport.jd.com/new/login.aspx?"
brower.get(url)
time.sleep(3)
s1 = r'//div/div[@class="login-tab login-tab-r"]/a'
userlogin = brower.find_element_by_xpath(s1)
userlogin.click()
# time.sleep(5)
username = brower.find_element_by_id("loginname")
username.send_keys(userid)
userpswd = brower.find_element_by_id("nloginpwd")
userpswd.send_keys(password)
# time.sleep(5)
brower.find_element_by_id("loginsubmit").click()
time.sleep(3)
while True:
try:
getPic()
except:
print("登陆成功----")
break
time.sleep(5)
def getPic():
# 用于找到登录图片的大图
s2 = r'//div/div[@class="JDJRV-bigimg"]/img'
# 用来找到登录图片的小滑块
s3 = r'//div/div[@class="JDJRV-smallimg"]/img'
bigimg = brower.find_element_by_xpath(s2).get_attribute("src")
smallimg = brower.find_element_by_xpath(s3).get_attribute("src")
# print(smallimg + '\n')
# print(bigimg)
# 背景大图命名
backimg = "backimg.png"
# 滑块命名
slideimg = "slideimg.png"
# 下载背景大图保存到本地
request.urlretrieve(bigimg, backimg)
# 下载滑块保存到本地
request.urlretrieve(smallimg, slideimg)
# 获取图片并灰度化
block = cv2.imread(slideimg, 0)
template = cv2.imread(backimg, 0)
# 二值化后的图片名称
blockName = "block.jpg"
templateName = "template.jpg"
# 将二值化后的图片进行保存
cv2.imwrite(blockName, block)
cv2.imwrite(templateName, template)
block = cv2.imread(blockName)
block = cv2.cvtColor(block, cv2.COLOR_RGB2GRAY)
block = abs(255 - block)
cv2.imwrite(blockName, block)
block = cv2.imread(blockName)
template = cv2.imread(templateName)
# 获取偏移量
result = cv2.matchTemplate(block, template, cv2.TM_CCOEFF_NORMED) # 查找block在template中的位置，返回result是一个矩阵，是每个点的匹配结果
x, y = np.unravel_index(result.argmax(), result.shape)
# print("x方向的偏移", int(y * 0.4 + 18), 'x:', x, 'y:', y)
# 获取滑块
element = brower.find_element_by_xpath(s3)
ActionChains(brower).click_and_hold(on_element=element).perform()
ActionChains(brower).move_to_element_with_offset(to_element=element, xoffset=y, yoffset=0).perform()
ActionChains(brower).release(on_element=element).perform()
time.sleep(3)
if __name__ == '__main__':
id = "*********" # 用户账号
passwd = "******" # 用户密码
loadpage(id, passwd)