udp协议的socket编程实现

UDP协议的socket编程实现可以分为以下几个步骤：

1. 创建UDP套接字

import socket

# 创建UDP套接字
udp_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)

2. 绑定端口号

# 绑定端口号
local_addr = ('', 8888)
udp_socket.bind(local_addr)

3. 发送数据

# 发送数据
dest_addr = ('192.168.1.100', 8080)
send_data = 'Hello, UDP!'
udp_socket.sendto(send_data.encode('utf-8'), dest_addr)

4. 接收数据

# 接收数据
recv_data, src_addr = udp_socket.recvfrom(1024)
print('Received from %s:%s' % src_addr)
print('Received data:', recv_data.decode('utf-8'))

完整代码如下：

import socket

# 创建UDP套接字
udp_socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)

# 绑定端口号
local_addr = ('', 8888)
udp_socket.bind(local_addr)

# 发送数据
dest_addr = ('192.168.1.100', 8080)
send_data = 'Hello, UDP!'
udp_socket.sendto(send_data.encode('utf-8'), dest_addr)

# 接收数据
recv_data, src_addr = udp_socket.recvfrom(1024)
print('Received from %s:%s' % src_addr)
print('Received data:', recv_data.decode('utf-8'))

# 关闭套接字
udp_socket.close()