python之爬虫的入门04------爬虫代理ip、保存为CSV表格

一、爬虫伪装—使用代理ip

import urllib.request
import random
url = 'http://45.32.164.128/ip.php'
#URL地址
iplist = ['112.91.159.66:3128','119.31.210.170:7777','221.7.255.168:8080']
#多个代理IP地址
'''
细致的设置代理,可以用opener的open方法打开URL:
'''
proxy_support = urllib.request.ProxyHandler({'http':random.choice(iplist)})
# 参数是一个字典{'类型'：'代理IP：端口号'}
opener = urllib.request.build_opener(proxy_support)
# 订制创建一个opener
urllib.request.install_opener(opener)
#安装opener
response = urllib.request.urlopen(url)
html = response.read().decode('utf8')
print(html)

二、保存为CSV表格

import csv
def write_msg(data):
'''这个函数用来将爬取的数据写入文件'''
with open("csvfile.csv", 'a+', newline='') as f:
wf = csv.writer(f)
wf.writerow(data)
if __name__ == '__main__':
head = ['msg', 'area', 'price', 'address', 'user', 'phone']
with open('./csvfile.csv', 'a+') as f:
wf = csv.writer(f)
wf.writerow(head)
data = ['1', '2', '4', '6', 'g', 'uy']
write_msg(data)
data = ['3', '1', 'a', '6', 'g', 'uy']
write_msg(data)
data = ['w', 'wdveg546thfwer4335refveergrtbg5', '我的', 'we', 'fvr', 'df43ferrver3442ergfregbvrvebevevevfvervfvr']
write_msg(data)

最后

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