python socket

server
#! bin/usr/evn python
# -*- coding:utf-8 -*-
import socket
sk=socket.socket()
sk.bind((‘127.0.0.2‘,888,))
sk.listen(5)

while 1:
    con,addr=sk.accept()
    con.sendall(bytes(‘welcome‘,encoding=‘utf-8‘))
    file_size=str(con.recv(1024),encoding=‘utf-8‘)
    print(file_size)
    total_size=int(file_size)
    has_recv=0
    f=open(‘new.jpg‘,‘wb‘)
    while 1:
        if total_size==has_recv:
            break
        data=con.recv(1024)
        f.write(data)
        has_recv+=len(data)

    f.close()

client
#! bin/usr/evn python
# -*- coding:utf-8 -*-
import socket,os
obj=socket.socket()
obj.connect((‘127.0.0.2‘,888,))
ret_byt=obj.recv(1024)
ret_str=str(ret_byt,encoding=‘utf-8‘)
print(ret_str)

size=os.stat(‘004.jpg‘).st_size
obj.sendall(bytes(str(size),encoding=‘utf-8‘))

with open(‘004.jpg‘,‘rb‘) as f:
    for i in f:
        obj.sendall(i)

obj.close()

socketsever 这个可以多线程

#! bin/usr/evn python
# -*- coding:utf-8 -*-
import  socketserver

class Myserver(socketserver.BaseRequestHandler):

    def handle(self):#在handle方法里面写要处理的代码，只能在handle里面写
        pass


if __name__==‘__main__‘:
    sever= socketserver.ThreadingTCPServer((‘127.0.0.1‘,888),Myserver)
    sever.server_forever()