socket 简历网络连接

# server 代码

import socket
import threading
import time
# s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# s.connect(('www.sina.com.cn',80))
# s.send(b'GET / HTTP/1.1
Host: www.sina.com.cn
Connection: close

')
#
# buffer = []
# while True:
#     d = s.recv(1024)
#     if d:
#         buffer.append(d)
#     else:
#         break
#
# data = b''.join(buffer)
# s.close()
#
# header, html = data.split(b'

', 1)
# print(header.decode('utf-8'))
#
# with open('sina.html', 'wb') as f:
#     f.write(html)


s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind(('127.0.0.1',9999))
s.listen(5)
print('Waiting for connection...')


def tcplink(sock, addr):
    print('Accept new connection from %s:%s...'%addr)
    sock.send(b'Welcome!')
    while True:
        data = sock.recv(1024)
        time.sleep(1)
        if not data or data.decode('utf-8') == 'exit':
            break
        sock.send(('Hello, %s!'%data.decode('utf-8')).encode('utf-8'))
    sock.close()
    print('Connection from %s:%s closed.' % addr)


while True:
    sock, addr = s.accept()
    t = threading.Thread(target=tcplink, args=(sock, addr))
    t.start()

# client 代码

import socket

s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(('127.0.0.1', 9999))
print(s.recv(1024).decode('utf-8'))
for data in [b'liu', b'hong', b'tao']:
    s.send(data)
    print(s.recv(1024).decode('utf-8'))

s.send(b'exit')
s.close()