本文實(shí)例講述了Python實(shí)現(xiàn)UDP數(shù)據(jù)報(bào)傳輸?shù)姆椒ǎ浅＞哂袑?shí)用價(jià)值。分享給大家供大家參考。具體方法分析如下：

服務(wù)端代碼：

            
import socket 
port = 8081 
s = socket.socket(socket.AF_INET,socket.SOCK_DGRAM) 
#從給定的端口，從任何發(fā)送者，接收UDP數(shù)據(jù)報(bào) 
s.bind(("",port)) 
print 'waiting on port:',port 
while True: 
  data,addr = s.recvfrom(1024) 
  #接收一個(gè)數(shù)據(jù)報(bào)(最大到1024字節(jié)) 
  print 'reciveed:',data,"from",addr 

          

客戶端代碼：

            
import socket 
port = 8081 
host = "localhost" 
s = socket.socket(socket.AF_INET,socket.SOCK_DGRAM) 
s.sendto("hello world",(host,port)) 


          

結(jié)果：先運(yùn)行服務(wù)端，然后運(yùn)行客戶端，
服務(wù)端打印出：

            
waiting on port: 8081
reciveed: hello world from ('127.0.0.1', 62644)

          

補(bǔ)充：
socket.sendto(string[, flags], address)

官方文檔如下：

Send data to the socket. The socket should not be connected to a remote socket, since the destination socket is specified by address. The optional flags argument has the same meaning as for recv() above. Return the number of bytes sent. (The format of address depends on the address family ― see above.)address參數(shù)在協(xié)議類型為socket.SOCK_DGRAM時(shí)，address的結(jié)構(gòu)為一個(gè)元組，(host,port)的格式

希望本文所述對(duì)大家的Python程序設(shè)計(jì)有所幫助。