一、服务端(Server.py)
服务端要做的事情是：
1. 创建一个Socket对象
[img]http://www.cnblogs.com/Images/OutliningIndicators/None.gif[/img]
import socket
[img]http://www.cnblogs.com/Images/OutliningIndicators/None.gif[/img]
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
2. 绑定一个端口
[img]http://www.cnblogs.com/Images/OutliningIndicators/None.gif[/img]
s.bind(("", 8081))
3. 接受来自客户端的消息
[img]http://www.cnblogs.com/Images/OutliningIndicators/None.gif[/img]
while True:
[img]http://www.cnblogs.com/Images/OutliningIndicators/None.gif[/img]
# Receive up to 1,024 bytes in a datagram
[img]http://www.cnblogs.com/Images/OutliningIndicators/None.gif[/img]
data, addr = s.recvfrom(1024)
[img]http://www.cnblogs.com/Images/OutliningIndicators/None.gif[/img]
print "Received:", data, "from", addr
二、客户端(Client.py)
客户端要做的事情是：
1. 创建一个Socket对象。
[img]http://www.cnblogs.com/Images/OutliningIndicators/None.gif[/img]
import socket
[img]http://www.cnblogs.com/Images/OutliningIndicators/None.gif[/img]
s = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
2. 向某个服务器的指定的端口发送消息。由于使用UDP，如果服务器端未接收到将会丢弃数据包。
[img]http://www.cnblogs.com/Images/OutliningIndicators/None.gif[/img]
port = 8081
[img]http://www.cnblogs.com/Images/OutliningIndicators/None.gif[/img]
host = "localhost"
[img]http://www.cnblogs.com/Images/OutliningIndicators/None.gif[/img]
while True:
[img]http://www.cnblogs.com/Images/OutliningIndicators/None.gif[/img]
msg = raw_input()
[img]http://www.cnblogs.com/Images/OutliningIndicators/None.gif[/img]
s.sendto(msg, (host, port))
三、运行试试
[img]http://images.cnblogs.com/cnblogs_com/coderzh/SocketPic.jpg[/img]
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