python-socket

基于c++的socket编程可以看我以前博客的socket编程系列，地址
这里就简单介绍继续python的socket编程
编写tcp时一般会用到的socket模块，其方法包括：
connect(address):连接远程计算机
send(bytes[,flags]):发送数据
recv(bufsize[,flags]):接收数据
bind(address):绑定地址
listen(backlog):开始监听，等待客户端连接
accept():响应客户端的一个请求，接受一个连接

server.py

import socket  # 导入 socket 模块
import sys

s = socket.socket(socket.AF_INET,socket.SOCK_STREAM)  # 创建 socket 对象
host = "127.0.0.1"
port = 12345  # 设置端口
s.bind((host, port))  # 绑定端口
print("listening at port:",port)
s.listen(1)
conn,addr = s.accept()
i = 5
while True:
    print("waiting for connection...")
    print("Connect by:",addr)
    i = i - 1
    while i == 0 :
        print("等待5次连接失败！")
        sys.exit()
    while True:
        data = conn.recv(1024)
        data = data.decode()
        if not data:
            break
        print("recv message:",data)
        datasend = input(">")
        conn.sendall(datasend.encode())
    if(data=="bye"):
        conn.close()
        s.close()

client.py

import socket,sys
HOST = "127.0.0.1"
PORT = 12345
s = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
s.connect((HOST,PORT))
while True:
    datasend = input(">")
    if not datasend:
        break
    s.sendall(datasend.encode())
    datarecv = s.recv(1024)
    if not datarecv:
        break
    print("recv data:",datarecv.decode())
s.close()