day6 socket的实现

1.端到端，单服务
server:

import socket
import json 
ip = ('127.0.0.1',9999) #必须元祖形式
sk = socket.socket() #实例化socket服务
sk.bind()  #发布socket监听
sk.listen(5) #限制链接数5

while True:
    print('server waiting')
    conn,addr = sk.accept()#接受客户端信息
    client_data = conn.recv(1024)#读取缓冲区
    str = json.loads(client_data.decode("utf-8")) #必须解码2进制为字符
    print(str)
    conn.sendall('don\'t answer'.encode('utf-8'))#必须编码为2进制发送
    conn.close()

client

import socket
import json 
ip = ('127.0.0.1',9999) #必须元祖形式
sk = socket.socket() #实例化socket服务
sk.connect(ip)  #发布socket连接

while True:
  msg = "sss"
    str = json.dumps(msg).encode("utf-8") #二进制打包发送
  sk.send(str)
    recv = sk.recv(1024).decode('utf-8')#二进制解码
  print(recv)
    conn.close()