每個語言都有自己的udp數據報傳輸和接收方式，但是python的代碼很短，類似如下

# sender.pyfrom socket import * # import the module for socketsender = socket(AF_INET,SOCK_DGRAM) # the args stand for udp addr = ('127.0.0.1',10002) # send to this address data = 'Hello world!'.encode() # encoding is requiredtry:sender.sendto(data,addr) # send the data to addr except:print('An error occurs while sending data') # server.pyfrom socket import * # import the module for socketserver = socket(AF_INET,SOCK_DGRAM) # the args stand for udp addr = ('',10002) # '' means any address/# use an unempty str to specify# 10002 means binding port server.bind(addr) # start to listendata,addr = server.recvfrom(1024) # 1024 means get at most 1024B# return a tuple# first is data sent# second is a tuple of address print('Receive data from {} through port 10002.'.format(addr[0])) print('It is sent from source port {}.'.format(addr[1])) print('='*25+'Data Start'+'='*25) print(data.decode()) print('='*26+'Data End'+'='*26)

在python中進行udp傳輸非常簡單，發送使用socket.sendto(data,addr)，接收使用socket.recvfrom(length)，參考代碼示例很容易能理解。

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