电脑和树莓派在同一局域网内，先在电脑和树莓派创建python运行环境，然后在树莓派中用python运行rpi.py；在电脑上运行computer.py；电脑上输入字符即可在树莓派上即时显示！

rpi.py

#coding:utf-8#import necessary packageimport socketimport timeimport sysHOST_IP = "192.168.31.151" #树莓派的IP地址HOST_PORT = 8888print("Starting socket: TCP...")#1.create socket object:socket=socket.socket(family,type)socket_tcp = socket.socket(socket.AF_INET, socket.SOCK_STREAM)print("TCP server listen @ %s:%d!" %(HOST_IP, HOST_PORT) )host_addr = (HOST_IP, HOST_PORT)#2.bind socket to addr:socket.bind(address)socket_tcp.bind(host_addr)#3.listen connection request:socket.listen(backlog)socket_tcp.listen(1)#4.waite for client:connection,address=socket.accept()socket_con, (client_ip, client_port) = socket_tcp.accept()print("Connection accepted from %s." %client_ip)socket_con.send("Welcome to RPi TCP server!")print("Receiving package...")###主循环while True: try: data=socket_con.recv(512) if len(data)>0: print("Received:%s"%data) socket_con.send(data) time.sleep(1) continue except Exception: socket_tcp.close() sys.exit(1)

computer.py

import socketimport timeimport sysSERVER_IP = "192.168.31.151" #树莓派的IP地址SERVER_PORT = 8888print("Starting socket: TCP...")server_addr = (SERVER_IP, SERVER_PORT)socket_tcp = socket.socket(socket.AF_INET, socket.SOCK_STREAM)while True: try: print("Connecting to server @ %s:%d..." %(SERVER_IP, SERVER_PORT)) socket_tcp.connect(server_addr) break except Exception: print("Can't connect to server,try it latter!") time.sleep(1) continueprint("Please input:")while True: try: data = socket_tcp.recv(512) if len(data)>0: print("Received: %s" % data) command=raw_input() socket_tcp.send(command) time.sleep(1) continue except Exception: socket_tcp.close() socket_tcp=None sys.exit(1)

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