Python没爬取到数据，求看这个是什么原因

Question

爬另一个网站也是这么操作的，能爬取到数据，爬这个就获取不到数据，控制台显示0条，我检查了节点感觉没问题呀

import requests
from fake_useragent import UserAgent
from lxml import etree
import pandas as pd


class driver:
    def __init__(self):
        self.url='https://www.ncss.cn/student/jobs/index.html'#请求url/网址
        self.headers = {'User-Agent':UserAgent().random}#请求头，包含随机生成的User-Agent
        self.df = pd.DataFrame(columns=["职位","薪资","公司名","学历","专业","其它"])#空的DataFrame，用于存储爬取的数据
        
    def get_html(self,url):
        res = requests.get(url, headers=self.headers)
        return res.text
        
    def parse_html(self,html):
        html = etree.HTML(html)
        list = html.xpath('//div[@class="job-list-box"]/div')
        #定义两个数组
        titles = []
        texts = []
        print(len(list))
        
        for li in list:
            title = li.xpath('./div/ul/h5/a/text()')[0]
            titles.append(title) 
            
            text = li.xpath('./div/ul/li/text()')[0]
            texts.append(text)
    
        temp_df = pd.DataFrame({
            "职位":titles,
            "详情":texts
            })
        self.df = pd.concat([self.df,temp_df],ignore_index=True)
        print(self.df)
        
        
    def run(self,pages=1):
        for page in range(1,pages + 1):
            url = f"{self.url}?start={10*(page - 1)}&filter="
            html = self.get_html(url)
            self.parse_html(html)
        self.df.to_excel("../tmp/爬虫数据.xlsx",index=False)
        
if __name__ =='__main__':
    spider = driver()
    spider.run()
    
        
        

Answer 1

数据来源不是网页源代码，而是这个