如何解决与另一台设备建立连接时，tkinter窗口不显示
客户端程序：
import socket
from tkinter import *
def envoyer_msg():
s.send(msg.get().encode())
fenetre=Tk()
fenetre.geometry("{}x{}+{}+{}".format(200,200,200))
texte=Label(fenetre,text="CLIENT",font=25)
texte.pack()
msg=StringVar()
saisie=Entry(fenetre,textvariable=msg,font=25)
saisie.pack()
bouton_envoyer=Button(fenetre,text="Envoyer",font=25,command=envoyer_msg)
bouton_envoyer.pack()
s = socket.socket()
s.connect(('127.0.0.1',12345))
这里是服务器程序：
import socket
from tkinter import *
def envoyer_msg():
c.send(msg.encode())
fenetre=Tk()
fenetre.geometry("{}x{}+{}+{}".format(200,text="SERVEUR",command=envoyer_msg)
bouton_envoyer.pack()
print("1")
s = socket.socket()
port = 12345
s.bind(('',port))
s.listen(5)
c,addr = s.accept()
print ("Socket Up and running with a connection from",addr)
print("2")
while True:
rcvdData = c.recv(1024).decode()
print ("S:",rcvdData)
print("3")
解决方法
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</html>制成的IDE（如Python IDLE），也应显式调用mainloop()。否则，在终端中执行脚本时，GUI不会显示。
因为tkinter循环阻止while，所以服务器GUI不会显示。您需要将客户端连接处理任务放在一个线程中：
mainloop()在客户端同样适用：
# server code
import socket
import threading
from tkinter import *
def envoyer_msg():
c.send(msg.get().encode())
fenetre=Tk()
fenetre.geometry("{}x{}+{}+{}".format(200,200,200))
texte=Label(fenetre,text="SERVEUR",font=25)
texte.pack()
msg=StringVar()
saisie=Entry(fenetre,textvariable=msg,font=25)
saisie.pack()
bouton_envoyer=Button(fenetre,text="Envoyer",font=25,command=envoyer_msg)
bouton_envoyer.pack()
def server_task():
global c
s = socket.socket()
port = 12345
s.bind(('',port))
s.listen(5)
while True:
print('waiting connection ...')
c,addr = s.accept()
print ("Socket Up and running with a connection from",addr)
while True:
try:
rcvdData = c.recv(1024).decode()
print ("Client:",rcvdData)
except ConnectionResetError:
print('Client disconnected')
break
# start the client connection handling thread
threading.Thread(target=server_task,daemon=True).start()
fenetre.mainloop()
由于要使用GUI，因此最好使用# client code
import socket
import threading
from tkinter import *
def envoyer_msg():
s.send(msg.get().encode())
fenetre=Tk()
fenetre.geometry("{}x{}+{}+{}".format(200,400,text="CLIENT",command=envoyer_msg)
bouton_envoyer.pack()
def client_task():
global s
s = socket.socket()
s.connect(('127.0.0.1',12345))
while True:
try:
rcvdData = s.recv(1024).decode()
print('Server:',rcvdData)
except ConnectionResetError:
print('Server disconnected')
fenetre.destroy()
# start the server connection thread
threading.Thread(target=client_task,daemon=True).start()
fenetre.mainloop()
小部件来保存对等消息，而不要使用Text。
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