Python全栈——C/S基础

TCP
tpye = SOCK_STREAM
server.py

import socket

# 不传参数，默认使用基于网络类型的套接字，协议：TCP
server = socket.socket()
# 告诉别人server的地址和端口
# 端口的范围是0-65535，但是0-1023这些是默认端口不能使用
server.bind(('192.168.1.107', 18080))
# 能同时接受的连接
server.listen()
# 接受客户端的连接，阻塞等待
conn, addr = server.accept()

while 1:
    msg_r = conn.recv(1024).decode('utf-8')
    if msg_r == 'q':
        break
    print(msg_r)
    msg_s = input('>>>')
    conn.send(msg_s.encode('utf-8'))
    if msg_s == 'q':
        break

conn.close()
server.close()

client.py

import socket

client = socket.socket()
client.connect(('192.168.1.107', 18080))

while 1:
    msg_s = input('>>>')
    client.send(msg_s.encode('utf-8'))
    if msg_s == 'q':
        break
    msg_r = client.recv(1024).decode('utf-8')
    if msg_r == 'q':
        break
    print(msg_r)

client.close()

UDP
tpye = SOCK_DGRAM
优势：一个服务器可以和多个客户端进行通信
server.py

import socket

# 不传参数，默认使用基于网络类型的套接字，协议：UDP
server = socket.socket(type=socket.SOCK_DGRAM)
# 告诉别人server的地址和端口
# 端口的范围是0-65535，但是0-1023这些是默认端口不能使用
server.bind(('192.168.1.107', 18080))

while 1:
    msg_r, addr = server.recvfrom(1024)
    if msg_r.decode('utf-8') == 'q':
        break
    print(msg_r.decode('utf-8'), addr)
    msg_s = input('>>>')
    server.sendto(msg_s.encode('utf-8'), addr)
    if msg_s == 'q':
        break

server.close()

client.py

import socket

client = socket.socket(type=socket.SOCK_DGRAM)

while 1:
    msg_s = input('>>>')
    client.sendto(msg_s.encode('utf-8'), ('192.168.1.107', 18080))
    if msg_s == 'q':
        break
    msg_r, addr = client.recvfrom(1024)
    if msg_r.decode('utf-8') == 'q':
        break
    print(msg_r.decode('utf-8'))

client.close()

来源：CSDN

作者：小依子

链接：https://blog.csdn.net/weixin_43382257/article/details/104080129

标签

socket

python