#!/usr/bin/env python3import socket import sysHOST="localhost" PORT=21200 ADDR=(HOST,PORT)# Create a socket (SOCK_STREAM means a TCP socket) with socket.socket(socket.AF_INET, socket.SOCK_STREAM) as sock:# 連接服務器sock.connect(ADDR)data=input('==>')sock.sendall(bytes(data + "\n", "utf-8"))# Receive data from the server and shut downreceived = str(sock.recv(1024), "utf-8")print("Sent: {}".format(data)) print("Received: {}".format(received))#!/usr/bin/env python3import socketserver from time import ctimeHOST='' PORT=21200 ADDR=(HOST,PORT)class MyTCPHandler(socketserver.StreamRequestHandler):def handle(self):print("接受{0}連接...".format(self.client_address))self.data = self.rfile.readline().strip()print("{} 發來消息:".format(self.client_address[0]))print(self.data)# self.wfile是一個類似文件的對象，用于寫回客戶端self.wfile.write(bytes("{0}:{1} ".format(ctime(),self.data),'utf-8'))if __name__ == "__main__":# Create the server, binding to localhost on port 9999with socketserver.TCPServer(ADDR, MyTCPHandler) as server:print("等待連接...")#激活服務器，直到按ctrl+c退出server.serve_forever()

bogon:python3 myhaspl$ python3 1-c.py
==>hhhh
Sent: hhhh
Received: Sun Sep 16 12:47:01 2018:b’hhhh’
下面是服務器端運行狀態：

等待連接…
接受(‘127.0.0.1’, 50751)連接…
127.0.0.1 發來消息:
b’hi’
接受(‘127.0.0.1’, 50752)連接…
127.0.0.1 發來消息:
b’hhhh’

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