UDP template 代码

服务端

 from socket import *
 import json,struct

 client= socket(AF_INET,SOCK_STREAM)
 client.connect(('127.0.0.1',8081))

 while True:
     cmd=input('>>>').strip()
     if not cmd:continue
     client.send(cmd.encode('utf-8'))
     # 先接受报头长度
     head_len=struct.unpack('i',client.recv(4))[0]
     # 接收报头
     head_bytes=client.recv(head_len)
     # 解析报头
     head_json=head_bytes.decode('utf-8')
     head_dic=json.loads(head_json)
     print(head_json)
     total_size=head_dic['size']
     # 取出真实数据
     recv_size=0
     finnally_data=b''
     while total_size>recv_size:
         recv_data=client.recv(1024)
         finnally_data+=recv_data
         recv_size+=len(recv_data)
     print(finnally_data.decode('gbk'))

 client.close()

客户端

 from socket import *

 client=socket(AF_INET,SOCK_DGRAM)

 while True:
     msg=input('>>>').strip()
     if not msg:continue
     client.sendto(msg.encode('utf-8'),('127.0.0.1',8080))
     data,addr=client.recvfrom(512)
     print(data.decode('utf-8'))