UDP template 代码

 1 from socket import *
 2 import json,struct
 3 
 4 client= socket(AF_INET,SOCK_STREAM)
 5 client.connect((‘127.0.0.1‘,8081))
 6 
 7 while True:
 8     cmd=input(‘>>>‘).strip()
 9     if not cmd:continue
10     client.send(cmd.encode(‘utf-8‘))
11     # 先接受报头长度
12     head_len=struct.unpack(‘i‘,client.recv(4))[0]
13     # 接收报头
14     head_bytes=client.recv(head_len)
15     # 解析报头
16     head_json=head_bytes.decode(‘utf-8‘)
17     head_dic=json.loads(head_json)
18     print(head_json)
19     total_size=head_dic[‘size‘]
20     # 取出真实数据
21     recv_size=0
22     finnally_data=b‘‘
23     while total_size>recv_size:
24         recv_data=client.recv(1024)
25         finnally_data+=recv_data
26         recv_size+=len(recv_data)
27     print(finnally_data.decode(‘gbk‘))
28 
29 client.close()

 1 from socket import *
 2 
 3 client=socket(AF_INET,SOCK_DGRAM)
 4 
 5 while True:
 6     msg=input(‘>>>‘).strip()
 7     if not msg:continue
 8     client.sendto(msg.encode(‘utf-8‘),(‘127.0.0.1‘,8080))
 9     data,addr=client.recvfrom(512)
10     print(data.decode(‘utf-8‘))