Python实现自动访问网页的例子

 import urllib.request import requests import time import ssl import random def openUrl(ip, agent): headers = {'User-Agent': agent} proxies = {'http' : ip} requests.get("https://www.baidu.com", headers=headers, proxies=proxies, verify=True) ssl._create_default_https_context = ssl._create_unverified_context print("Access to success.") #IP池 #IP来源： # http://www.xicidaili.com/ # https://www.kuaidaili.com/free/ def randomIP(): ip = random.choice(['120.78.78.141', '122.72.18.35', '120.92.119.229']) return ip #User-Agent #User-Agent来源：http://www.useragentstring.com/pages/useragentstring.php def randomUserAgent(): UserAgent = random.choice(['Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537<i style="color:transparent">来源gaodai$ma#com搞$$代**码)网</i>.36 (KHTML, like Gecko) Chrome/41.0.2228.0 Safari/537.36', 'Mozilla/5.0 (Macintosh; Intel Mac OS X 10_10_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2227.1 Safari/537.36', 'Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/41.0.2227.0 Safari/537.36']) return UserAgent if __name__ == '__main__': for i in range(10): ip = randomIP() agent = randomUserAgent() openUrl(ip, agent) time.sleep(1) 

 import socket # 创建TCP链接 tcp_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM) # DNS 解析和链接HTTP服务器 tcp_socket.connect(("www.qq.com", 80)) # 编写请求头， 发送HTTP请求报文 # 请求行 request_line = "GET / HTTP/1.1\r\n" # 请求头,设置请求域名 request_header = "www.qq.com\r\n" request_data = request_line + request_header + "\r\n" # 发送请求 tcp_socket.send(request_data.encode("utf-8")) # 接收响应报文,指定长度 response_data = tcp_socket.recv(4096) # 对响应报文进行解析 --切割 response_str_data = response_data.decode("utf-8") print(response_data) # "\r\n\r\n" 之后的数据就是响应体数据 index = response_str_data.find("\r\n\r\n") # 切割出的数据就是文件数据 html_data = response_str_data[index+4:] # 在当前路径下新建文件存储响应数据 with open("index.html", "wb") as file: file.write(html_data.encode()) # 关闭套接字 tcp_socket.close()