<0301>[python]----网络编程socket

client

import socket
soc = socket.socket()
soc.connect(("localhost",8888))
while True:
    soc.send(input("请输入>>>").encode("utf-8"))
    data = soc.recv(1024)
    print("服务器说>>>",data)
    if data==b"byebye":
        break
soc.close()

server

import socket,multiprocessing

def run(conn):
    while True:
        data = conn.recv(1024)
        if data == b"":
            print("客户端已经断开连接")
            break
        print("说:",data)
        i = input("输入>>>")
        conn.send(i.encode("utf-8"))
    conn.close()
def init(q):
    soc = socket.socket()
    soc.bind(("",8888))
    soc.listen()
    q.put(soc)
def getconn(q):
    while True:
        print("等待连接...")
        conn, addr = q.get().accept()
        print("连接成功！")
        multiprocessing.Process(target=run,).start()
if __name__=="__main__":
    q = multiprocessing.Queue(maxsize=3)
    p = multiprocessing.Process(target=init, args=(q,))
    p.start()
    p.join()
    p1 = multiprocessing.Process(target=getconn, args=(q,))
    p1.start()

多个客户端向服务器端传输数据

client

import socket
client = socket.socket()
client.connect(("localhost",6666))
while True:
    s = input("请输入>>")
    c = len(s)//3
    client.send(s[:c].encode("utf-8"))
    client.send(s[c:c*2].encode("utf-8"))
    client.send(s[c*2:].encode("utf-8"))
    data = client.recv(100)
    print("服务端说：",data)
    if data==b"byebye":
        break
client.close()

server

'''
一次会话
'''



import socket,time

soc = socket.socket()#创建socket对象
soc.bind(("",6666))#绑定ip和端口号
soc.listen()#开始监听
while True:
    print("开始等待连接")
    conn,addr = soc.accept()#等待连接
    print("连接成功...")
    while True:
        rev1 = conn.recv(100)#接收数据>>>
        #rev2 = conn.recv(4)
        #rev3 = conn.recv(4)
        if rev1==b"":
            break
        print("客户端说：",rev1)
        #print("客户端说：", rev2)
        #print("客户端说：", rev3)
        s = input("请输入>>")
        conn.send(s.encode("utf-8"))
    conn.close()