從51job提取職位數量

import urllib.request
import re

url = "https://search.51job.com/list/150200,000000,0000,00,9,99,java,2,1.html?lang=c&stype=&postchannel=0000&workyear=99&cotype=99&degreefrom=99&jobterm=99&companysize=99&providesalary=99&lonlat=0%2C0&radius=-1&ord_field=0&confirmdate=9&fromType=&dibiaoid=0&address=&line=&specialarea=00&from=&welfare="

def query(url):
    html = ""
    try:
        response = urllib.request.urlopen(url)
        html = str(response.read().decode("gbk"))
    except:
        print("access error")

    restr = """<div class="rt">([\s\S]*?)</div>"""
    regex = re.compile(restr, re.IGNORECASE)
    mylist = regex.findall(html)

    # 數據包含換行空格等字符
    data = mylist[0].strip()
    print(data)

    # 提取職位數
    restr = "(\\d+)"
    regex = re.compile(restr, re.IGNORECASE)
    mylist = regex.findall(data)

    print(mylist[0])

query(url)