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'))