网络编程(三)

简单的网络通讯:

server端

import socket
server = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
server.bind(('127.0.0.1',8999))
server.listen(5)
conn,addr = server.accept()
while 1:
    form_msg = conn.recv(1024).decode('utf-8')
    #接收来自客户端的消息
    print(form_msg)
    data = input('>>>')
    conn.send(data.encode('utf-8'))#进行回复
conn.close()
server.close()

client:客户端

import socket
client = socket.socket()
client.connect(('127.0.0.1',8999))
while 1:
    data = input('>>>')
    client.send(data.encode('utf-8'))#给服务端进行发送消息
    msg = client.recv(1024).decode('utf-8')#接收来自服务端的消息
    print(msg)
client.close()

　　

循环通讯 :

server端:服务端

import socket
server = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
server.bind(('127.0.0.1',8999))
server.listen(5)
while 1:#循环服务端的等待接入的这段代码 让服务器一直循环
    conn,addr = server.accept()
    while 1:
        form_msg = conn.recv(1024).decode('utf-8')
        #接收来自客户端的消息
        print(form_msg)
        data = input('>>>')
        conn.send(data.encode('utf-8'))#进行回复
    conn.close()
server.close()

　client:客户端

import socket
client = socket.socket()
client.connect(('127.0.0.1',8999))
while 1:
    data = input('>>>')
    client.send(data.encode('utf-8'))#给服务端进行发送消息
    msg = client.recv(1024).decode('utf-8')#接收来自服务端的消息
    print(msg)
client.close()