基于UDP協(xié)議的socket

PS：udp是無(wú)連接的，先啟動(dòng)那一端都不會(huì)報(bào)錯(cuò)

server端

import socket # 導(dǎo)入socket模塊udp_sk = socket.socket(type=socket.SOCK_DGRAM) # 創(chuàng)建一個(gè)服務(wù)器套接字udp_sk.bind(('127.0.0.1', 8080)) # 綁定服務(wù)器套接字msg, addr = udp_sk.recvfrom(1024) # 接收客戶端信息print(msg) # 輸出客戶端的信息udp_sk.sendto(b'hi', addr) # 向客戶端發(fā)送信息udp_sk.close() # 關(guān)閉服務(wù)器套接字

client端

import socketsk = socket.socket(type=socket.SOCK_DGRAM)ip_port = ('127.0.0.1', 8080)udp_sk = sk.sendto(b'hello', ip_port)msg, addr = udp_sk.recvfrom(1024)print(msg.decode('utf-8'))

QQ聊天

server端

import socketip_port = ('127.0.0.1', 8080)udp_server_sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)udp_server_sock.bind(ip_port)while True: qq_msg, addr = udp_server_sock.recvfrom(1024) print('來(lái)自%s:%s' % (str(addr), qq_msg.decode('utf-8'))) back_msg = input('回復(fù)消息:').strip() udp_server_sock.sendto(back_msg.encode('utf-8'), addr)

client端

import socketBUFSIZE = 1024udp_client_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)qq_name_dic = {'路人甲': ('127.0.0.1', 8080), '路人乙': ('127.0.0.1', 8080), '路人丙': ('127.0.0.1', 8080)}while True: qq_name = input('請(qǐng)選擇聊天對(duì)象,輸入q結(jié)束程序：').strip() if qq_name == 'q': break while True: msg = input('請(qǐng)輸入消息,回車(chē)發(fā)送,輸入q結(jié)束和他的聊天:').strip() if msg == 'q': break if not msg or not qq_name or qq_name not in qq_name_dic: continue udp_client_socket.sendto(msg.encode('utf-8'), qq_name_dic[qq_name]) msg, addr = udp_client_socket.recvfrom(BUFSIZE) print('來(lái)自 %s 的一條消息:%s'%(str(addr), msg.decode('utf-8')))udp_client_socket.close()

時(shí)間服務(wù)器

server端

import socketimport timesk = socket.socket()sk.bind(('127.0.0.1', 8090))sk.listen()while True: conn, addr = sk.accept() while True: ret = conn.recv(1024).decode('utf-8') time.sleep(1) new_time = time.strftime(ret, time.localtime(time.time())) conn.send(new_time.encode('utf-8'))

client端

import socketsk = socket.socket()sk.connect(('127.0.0.1', 8090))while True: sk.send('%Y-%m-%d %X'.encode('utf-8')) msg = sk.recv(1024) print('' + str(msg.decode('utf-8')), end='', flush=True)

socket參數(shù)的詳解

socket.socket(family=AF_INET,type=SOCK_STREAM,proto=0,fileno=None)

創(chuàng)建socket對(duì)象的參數(shù)說(shuō)明

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