从浏览器复制的xpath为什么打出来是个空列表

Question

问题遇到的现象和发生背景

我想爬工商银行积存金的信息，使用xpath提取，但是从浏览器上复制的xpath打印出来是空列表，我应该怎么解决

问题相关代码，请勿粘贴截图

import requests
import logging
from lxml import etree

logging.basicConfig(level=logging.INFO,format='%(asctime)s-%(levelname)s:%(message)s')
BASE_URL='https://mybank.icbc.com.cn/icbc/newperbank/perbank3/frame/frame_index.jsp?serviceId=PBL200603'


def scrape_page(url):
    logging.info('scraping %s...',url)
    try:
        response=requests.get(url)
        if response.status_code==200:
            return response.text
        logging.error('get invalid status code %s while scraping %s',response.status_code,url)
    except requests.RequestException:
        logging.error('error occurred while scraping %s',url,exc_info=True)


yuanma=scrape_page(BASE_URL)
html=etree.HTML(yuanma)
result=html.xpath('/html/body/div/table/tbody/tr[2]/text()')
print(result)

运行结果及报错内容

[]

我的解答思路和尝试过的方法

我想要达到的结果

成功爬取积存金信息

Answer 1

积存金是用iframe加载的，在下面这个页面里面
https://mybank.icbc.com.cn/icbc/newperbank/perbank3/gold/goldaccrual_query_out.jsp
直接请求这个页面再用xpath，示例如下，由于是实时数据，结果和网页加载的不一样

import requests
import logging
from lxml import etree
 
logging.basicConfig(level=logging.INFO,format='%(asctime)s-%(levelname)s:%(message)s')
BASE_URL='https://mybank.icbc.com.cn/icbc/newperbank/perbank3/gold/goldaccrual_query_out.jsp'
 
 
def scrape_page(url):
    logging.info('scraping %s...',url)
    try:
        response=requests.get(url)
        if response.status_code==200:
            return response.text
        logging.error('get invalid status code %s while scraping %s',response.status_code,url)
    except requests.RequestException:
        logging.error('error occurred while scraping %s',url,exc_info=True)
 
 
yuanma=scrape_page(BASE_URL)


html=etree.HTML(yuanma)
result=html.xpath('/html/body/div/table/tr[2]/td/text()')
print(result)

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