关于#爬虫#的问题，如何解决？

import requests
from lxml import etree

def download_one_page(url):
     resp = requests.get(url)
     html = etree.HTML(resp.text)
     table = html.xapth("/html/body/div[5]/div[1]/div[3]/table")[0]
     trs=table.xpath("./tr")[1:]
     for tr in trs:
         txt=tr.xpath("./td/text()")
         txt=(item.repalce("\\","").replace("/","") for item in txt)
         print(list(txt))
if __name__=="__main__":
   download_one_page("https://www.phb123.com/city/renkou/rk.html")

为什么返回的是空值啊

反爬了，把Headers参数加上试试