套接字TCP

import  socket
socket_client = socket.socket()
#连接服务器的ip地址和端口号
socket_client.connect(("localhost",8888))
while True:
    send_msg =input("发送的数据：")
    if send_msg=="over":
        break
    socket_client.send(send_msg.encode("utf-8"))
    recv_data = socket_client.recv(1024).decode("utf-8")
    print("来自服务器的数据：",recv_data)
socket_client.close()

服务端：

import socket
# DNS、DHCP、TFTP、SNMP
#创建服务器端的socker
serverSocket = socket.socket(socket.AF_INET,socket.SOCK_STREAM)   #流式套接字，主要指TCP协议
serverSocket.bind(("localhost",8888))
serverSocket.listen(1)#接收2个客户端
print("正在监听中.....")
conn,address = serverSocket.accept()
print("接收到了来自客户端的信息：",address)
while True:
    data = conn.recv(1024).decode("utf-8")
    print("来自客户端的消息：",data)
    msg=input("请输入要回复客户端的消息:")
    if msg=="N":
        break
    conn.send(msg.encode("utf-8"))
conn.close()
serverSocket.close()