python-套接字编程之udp

使用udp协议

服务端：

#!/usr/bin/python3
# coding:utf-8
# Auther:AlphaPanda
# Description:UDP服务端
# Version:1
# Date:Mon Dec  2 03:24:46 EST 2019
### 服务端
import socket
# 1 创建udp对象 tpye = SOCK_DGRAM  代表udp协议
sk = socket.socket( type = socket.SOCK_DGRAM )

# 2 绑定Ip和端口(在网络中注册主机，让其他的服务器可以找到该主机)
sk.bind(("127.0.0.1",9000))

# 3 收发数据的逻辑
"""udp的服务端，第一次只能接收数据"""
while True:
    msg,cli_addr = sk.recvfrom(1024)
    print(msg.decode("utf-8"))
    message = input("server:>>>")
    if message == "q":
        break
    else:
        sk.sendto(message.encode("utf-8"),cli_addr)
# 4 关闭udp连接
sk.close()

客户端：

#!/usr/bin/python3
# coding:utf-8
# Auther:AlphaPanda
# Description:udp客户端
# Version::1
# Date:Mon Dec  2 03:28:23 EST 2019
"""
import socket
sk = socket.socket( type = socket.SOCK_DGRAM)
sk.sendto("hello".encode("utf-8"),("127.0.0.1",9000))
msg,dest_addr = sk.recvfrom(1024)
print(msg.decode("utf-8"))
sk.close()
"""
# 导入模块
import socket
# 生成UDP类型的套接字对象
sk = socket.socket( type = socket.SOCK_DGRAM )
# 逻辑判断，收发数据的代码
while True:
    message = input("client:>>>")
    if message == "q":
        break
    else:
        sk.sendto(message.encode("utf-8"),("127.0.0.1",9000))
        msg,ser_addr = sk.recvfrom(1024)
        print(msg.decode("utf-8"))

# 关闭UDP连接    
sk.close()