所有的web框架到头来都是这些核新代码：

#_*_coding:utf-8_*_
# Author:

import socket

# 处理函数
def handle_request(client):
    buf = client.recv(1024)
    client.send("HTTP/1.1 200 OK \r\n\r\n".encode('utf-8'))
    client.send("Hello, severn".encode('utf-8'))

def main():
    sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
    sock.bind(('localhost', 8008))    # 端口可以自定义
    sock.listen(5)

    while True:
        connection, address = sock.accept()
        handle_request(connection)
        connection.close()
if __name__ == '__main__':
    main()