1 '''
 2 @Description: lxml创建html页面
 3 @Version: 1.0
 4 @Autor: Montoin Yan
 5 @Date: 2020-02-05 20:01:17
 6 @LastEditors  : Montoin Yan
 7 @LastEditTime : 2020-02-05 21:06:31
 8 '''
 9 from lxml import etree
10 
11 root = etree.Element('html') #创建一个父节点
12 body = etree.Element('body') #创建第二个节点
13 
14 root.append(body) #以root为父节点将body作为添加到root的字节点中
15 print(etree.tostring(root))
16 
17 div1 = etree.SubElement(body,'div') #设置div块将其设置为body中的子节点
18 div2 = etree.SubElement(body,'div') #同上
19 
20 print(etree.tostring(root,pretty_print=True).decode()) #按照root作为父节点将所有内容漂亮的打印出来
21 
22 etree.HTML(text) #解析HTML文档，并返回根节点

 

 

 

 1 '''
 2 @Description: lxml爬取豆瓣一周口碑榜
 3 @Version: 1.0
 4 @Autor: Montoin Yan
 5 @Date: 2020-02-05 21:16:02
 6 @LastEditors  : Montoin Yan
 7 @LastEditTime : 2020-02-05 21:44:28
 8 '''
 9 from lxml import etree
10 import requests
11 import random
12 
13 #设置多个请求头，防止被反扒措施进行拦截
14 ua_list = [
15     "Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:72.0) Gecko/20100101 Firefox/72.0",
16     "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.29 Safari/537.36",
17     "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.102 Safari/537.36 Edge/18.18362",
18     "Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.25 Safari/537.36 Core/1.70.3741.400 QQBrowser/10.5.3863.400"
19 ]
20 #随机pick one
21 ua = random.choice(ua_list)
22 
23 url = "https://movie.douban.com/"
24 response = requests.request('GET',url,headers={
25     'User-agent':ua
26 })
27 
28 content = response.text
29 # print(content) #HTML内容
30 
31 #XPath  //div[@class='billboard-bd']//tr//a/text()
32 html = etree.HTML(content) #使用XPath解析上下文
33 titles = html.xpath("//div[@class='billboard-bd']//tr//a/text()") #依照XPath要求获取需要的文本
34 for i in titles:
35     print(i)