通过python实现tcp通信

一、Client端

# -*- encoding: utf-8 -*-
import socket
import sys
IP = '192.168.43.38'  # 填写服务器端的IP地址
port = 40005  # 端口号必须一致
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
try:
    s.connect((IP, port))
except Exception as e:
    print('server not find or not open')
    sys.exit()
while True:
    trigger = input("send:")
    s.sendall(trigger.encode())
    data = s.recv(1024)
    data = data.decode()
    print('recieved:', data)
    if trigger.lower() == '1':  # 发送1结束连接
        break
s.close()

二、Server端

import socket
 
host = "192.168.43.38"  # 服务器端可以写"localhost"，可以为空字符串""，也为本机IP地址
port = 40005  # 端口号
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.bind((host, port))
s.listen(1)
conn, addr = s.accept()
print('connected with', addr)
 
while True:
    data = conn.recv(1024)
    data = data.decode() 
    if not data:
        break
    print('receive:', data)
    send = input('send:') 
    conn.sendall(send.encode())  
 
conn.close()
s.close()

注意！两台PC必须在同一网段，才能实现连接，进行tcp通信！
最后，我用eclipse和idle分别运行，进行了一小段通信。但这种通信有一个弊端，就是只能等对方发送完消息之后，才能再回复！