#服務端
import socket
from socket import SOL_SOCKET,SO_REUSEADDR
sk = socket.socket() #建立服務端socket套接字
sk.setsockopt(SOL_SOCKET,SO_REUSEADDR,1)  #解決地址和埠被佔用的情況
sk.bind(("127.0.0.1",8080)) #繫結伺服器地址，埠號
sk.listen()  #監聽  等待訊息
conn,adree = sk.accept()   #接收客戶端的連線
while 1:
    ret = conn.recv(1024).decode("utf-8")
    
 
print(ret)
    if ret == "再見":
        conn.send(bytes("再見",encoding="utf-8"))
        break
    info = input(">>>")
    conn.send(bytes(info,encoding="utf-8"))
    # ret = conn.recv(1024)      #接收客戶端資訊 引數一般為1024的整數倍
    # print(ret)
    # conn.send(b"server")       #向客戶端傳送訊息
    # ret = conn.recv(1024)
 

    # print(ret.decode("utf-8"))
    # conn.send(bytes("來吧來吧！",encoding="utf-8"))
conn.close()               #關閉客戶連線
sk.close()                 #關閉服務套接字（可選）

#客戶端
import socket
sk = socket.socket()      #建立客戶套接字
sk.connect(("127.0.0.1",8080)) #嘗試連線服務
while 1:
    info = input(">>>")

    sk.send(bytes(info,encoding
 
="utf-8"))
    ret = sk.recv(1024).decode("utf-8")
    print(ret)
    if ret == "再見":
        sk.send(bytes("再見",encoding="utf-8"))
        break
    # sk.send(b"client")
    # ret = sk.recv(1024)
    # print(ret)
    # sk.send(bytes("約會不？",encoding="utf-8"))
    # ret = sk.recv(1024)
    # print(ret.decode("utf-8"))
sk.close()