Python基础爬虫练习（深圳房产信息网站）

网站url：https://shenzhen.qfang.com/sale/f1

# -*- coding: utf-8 -*-
"""
Created on Thu Oct 25 15:25:34 2018

@author: Belinda
"""
import requests
from lxml import etree
import csv
import time

def spider():
    #定义爬虫头部
    headers={'User-Agent':'Mozilla/5.0 (Window NT 10.0; WOW64)\ AppleWebKit/537.36 (KTML,like Gecko) Chrome/46.0.2490.80 Safari/537.36'}
    pre_url='https://shenzhen.qfang.com/sale/f'
    for i in range(1,100):#网页页面数为99,range(1,页面数+1)
        html=requests.get(pre_url+str(i),headers=headers)
        time.sleep(1)
        selector=etree.HTML(html.text)
        house_