python网络爬虫

import socket

target_host = "www.google.com"
target_port = 80

#建立一个socket对象
client = socket.socket(socket.AF_INET,socket.SOCK_STREAM)

#连接客户端
client.connect((target_host,target_port))

#发送数据
client.send("GET/HTTP/1.1\r\nHost:google.com\r\n\r\n")

#接受一些数据
response = client.recv(4096)

print response