为啥获取到的page_source一样

import time

from selenium import webdriver
import re
import json


class Handle_webdriver(object):
   def __init__(self):
       self.driver = webdriver.Chrome()
       self.driver.maximize_window()

   def handle_job(self):
       self.driver.get("https://search.51job.com/list/010000,000000,0000,00,9,99,%20,2,1.html")
       input_keyword = 'golang'
       self.driver.find_element_by_id('keywordInput').send_keys(input_keyword)
       self.driver.find_element_by_class_name('p_but').click()

       while True:
           time.sleep(2)
           self.handle_parse(self.driver.page_source)
           self.driver.find_element_by_xpath("//li[@class='next']/a").click()

       self.driver.quit()
       
       
   def handle_parse(self, page_source):
       re_job_search = re.compile(r'window.__SEARCH_RESULT__\s=\s(.*?)</script>')
       job_data = re_job_search.search(page_source)

       info_list = []
       if job_data:
           job_data_list = json.loads(job_data.group(1)).get("engine_search_result")
           for job_item in job_data_list:
               info = {}
               info['job_name'] = job_item['job_name']
               info['company_name'] = job_item['company_name']
               info['company_address'] = job_item['workarea_text']
               info['money'] = job_item['providesalary_text']
               info['date'] = job_item['updatedate']
               info_list.append(info)
           print(info_list)



test_selenium = Handle_webdriver()
test_selenium.handle_job()