Python简易聊天室实现：原理与代码解析

import socket,threading #导入文件
def shou(new_s,socket_list):#创建一个收的函数
    try:
        nikename = new_s.recv(1024).decode('utf-8').strip()#为当前客户端执行一次‘收'来获取
    except:
        new_s.close()#关闭当前客户端的套接字
        socket_list.remove(new_s)#去除套接字列表里的nes_s
        for i in socket_list:
            i.send('\n公告:一个未知的人离开了聊天室......'.encode('utf-8'))#广播
        return None
    for i in socket_list:
        i.send(f'\n公告:欢迎{nikename}进入了聊天室........\n'.encode('utf-8'))#广播
    while 1:
        try:
            recv_data = new_s.recv(1024).decode('utf-8')#如果接受到了客户端发来的信息
            print(recv_data)#仅作提醒用
            for i in socket_list:
                i.send(f'{nikename}:{recv_data}'.encode('utf-8'))#广播
        except:
            new_s.close()#关闭当前客户端的套接字
            socket_list.remove(new_s)#去除套接字列表里的nes_s
            for i in socket_list:
                i.send(f'公告:{nikename}离开了聊天室......'.encode('utf-8'))#广播
            break#跳出循环
def fa(new_s):
    while 1:
        msg = input('')#发出
        new_s.send(msg.encode('utf-8'))
#创建套接字
s = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
#绑定
s.bind(("",5678))#端口
#监听
s.listen(5)
print('服务端处于监听状态，等待客户端接入..........')
socket_list = []
while 1:
    #接入
    new_s,addr = s.accept()
    print('客户端已接入')
    socket_list.append(new_s)
    new_s.send('请输入昵称:'.encode('utf-8'))
    t1 = threading.Thread(target=shou,args=(new_s,socket_list))
    t2 = threading.Thread(target=fa,args=(new_s,))
    t1.start()
    t2.start()
# new_s.close()
# s.close()

import socket,threading
import tkinter as tk
#创建套接字
a = 1
s = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
s.connect(("127.0.0.1",5678))#此处端口看服务端的端口，127.0.0.1要改成服务端主机的ipv4地址
print('已链接服务端,通讯加密中')
def shou(s,msg_texe):
    recv_data = s.recv(1024).decode('utf-8')
    msg_text.insert(tk.END, recv_data)
    while 1:
        recv_data = s.recv(1024).decode('utf-8')
        msg_text.insert(tk.END,recv_data)
def fa():
    global a
    if a == 0:
        msg = input_text.get('0.0',tk.END)
        s.send(msg.encode('utf-8'))
        input_text.delete('0.0',tk.END)
    else:
        msg = input_text.get('0.0', tk.END)
        s.send(msg.encode('utf-8'))
        input_text.delete('0.0', tk.END)
        msg_text.delete('0.0', tk.END)
        a = 0

app = tk.Tk()
app.title('聊天室')
#显示消息框
msg_frame = tk.Frame(app,width=480,height=300)
msg_frame.grid(row=0,column=0,padx=6,pady=6)
msg_frame.grid_propagate(0)#固定Frame的大小
msg_text = tk.Text(msg_frame,bg='white')
msg_text.grid()
# msg_text.insert('0.0','hhh')
#输入
input_frame = tk.Frame(app,width=480,height=100)
input_frame.grid(row=1,column=0)
input_frame.grid_propagate(0)
input_text = tk.Text(input_frame,bg='white')
input_text.grid()
#发送按钮
btn_frame = tk.Frame(app,width=480,height=20)
btn_frame.grid(row=2,column=0,sticky='E')
button = tk.Button(btn_frame,text='发送',command=fa)
button.grid()
#线程
t1 = threading.Thread(target=shou,args=(s,msg_text))
t1.daemon = True
t1.start()
app.mainloop()
#s.close()