Python编程之socket

Posted 2021-01-27 高母寨寨委书记

1、TCP

客户端：

from socket import *
ip_port = ("127.0.0.1",8888)
back_log = 5
buffer_size = 1024
tcp_client = socket(AF_INET,SOCK_STREAM)
tcp_client.connect(ip_port)
while 1:
    msg = input(">>>>>>>:").strip()
    if not msg:continue
    tcp_client.send(msg.encode("utf-8"))
    print("客户端已发送消息",msg)
    data = tcp_client.recv(buffer_size)
    print("客户端收到的数据是",data.decode("utf-8"))
tcp_client.close()

服务端：

from socket import *
ip_port = ("127.0.0.1",8888)
back_log = 5
buffer_size = 1024
tcp_server = socket(AF_INET,SOCK_STREAM)
tcp_server.setsockopt(SOL_SOCKET,SO_REUSEADDR,1)#解决服务端断开延时问题
tcp_server.bind(ip_port)
tcp_server.listen(back_log)
print("服务端开始运行了")
while 1:
    conn,adr = tcp_server.accept()#服务端阻塞
    print("双向连接是",conn)
    print("客户端地址是",adr)
    while 1:
        try:
            data = conn.recv(buffer_size)
            print("客户端发来的消息是",data.decode("utf-8"))
            conn.send(data.upper())
            print("服务端回复的消息是",data.upper(),"客户端消息回复成功")
        except Exception:
            break
    conn.close()
tcp_server.close()