xpath解析返回列表空

作为爬虫新手练习时，先试用了copy full xpath解析:

/html/body/div[2]/div/div/div[3]/div/div[3]/div[4]/div[1]/div[1]

import requests
from lxml import etree

url = "https://beijing.zbj.com/search/service/?l=0&kw=saas&r=1"
resp = requests.get(url)

html = etree.HTML(resp.text)
divs = html.xpath("/html/body/div[2]/div/div/div[3]/div/div[3]/div[4]/div[1]/div")
print(divs)

改用copy xpath:

//*[@id="__layout"]/div/div[3]/div/div[3]/div[4]/div[1]/div[1]

import requests
from lxml import etree

url = "https://beijing.zbj.com/search/service/?l=0&kw=saas&r=1"
resp = requests.get(url)
html = etree.HTML(resp.text)
divs = html.xpath('//*[@id="__layout"]/div/div[3]/div/div[3]/div[4]/div[1]/div[1]')
print(divs)

成功取到结果。