python-网络编程

import socket

# 买手机
phone = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
# 插卡
phone.bind((‘127.0.0.1‘, 8080))
# 开机
phone.listen(5)
# 等电话链接
print(‘server start...‘)
conn, client_addr = phone.accept()  # (tcp链接,client_addr)
print(‘链接：‘, conn)
print(client_addr)

# 基于建立的链接，收发消息
client_data = conn.recv(1024)
print(‘客户端的消息‘, client_data)
conn.send(client_data.upper())

# 挂电话链接
conn.close()

# 关机
phone.close()

import socket

phone = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
phone.connect((‘127.0.0.1‘, 8080))

phone.send(‘hello‘.encode(‘utf-8‘))
server_data = phone.recv(1024)
print(‘服务端回应的消息‘, server_data)

phone.close()