一个简单的登录界面demo

代码基于ttkbootstrap 

from tkinter import *
import ttkbootstrap as ttk
from tkinter import messagebox

class TextView(ttk.Frame):
    def __init__(self,master):
        super().__init__(master,padding=30)
        self.pack(fill=BOTH,expand=YES)
        self.master = master
        self.user = ttk.StringVar()
        self.passwd = ttk.StringVar()
        self.createEntry()
        self.createbutton()
        self.master.bind("<Return>",self.on_login)


    def createEntry(self):
        entryFrame = ttk.Frame(master=self,padding=10)
        entryFrame.pack(fill=BOTH)

        userlable = ttk.Label(
            master=entryFrame,
            text="用户名"
        )
        userlable.pack(side=LEFT)
        self.userentry = ttk.Entry(
            master=entryFrame,
            textvariable=self.user,
            bootstyle="light"
        )
        self.userentry.pack(
            fill=X,
            side=RIGHT,
            expand=YES,
            padx=(50,50)
        )

        entryFrame = ttk.Frame(master=self,padding=10)
        entryFrame.pack(fill=BOTH)
        passlable = ttk.Label(master=entryFrame, text="密码",)
        passlable.pack(fill=X,side=LEFT)
        self.passentry = ttk.Entry(
            master=entryFrame,
            textvariable=self.passwd,
            bootstyle="light",
            show="*"
        )
        self.passentry.pack(
            fill=X,
            side=RIGHT,
            expand=YES,
            padx=(73,50)
        )

    def createbutton(self):
        buttonFrame = ttk.Frame(master=self)
        buttonFrame.pack(
            fill=BOTH,
            padx=(133,60),
            pady=(20,0)
        )
        button = ttk.Button(
            master=buttonFrame,
            text="登录",
            style="success",
            command=self.on_login
        )
        button.pack(fill=X,side=LEFT,expand=YES)
        button = ttk.Button(
            master=buttonFrame,
            text="注册",
            style="light"
        )
        button.pack(fill=X,side=LEFT,expand=YES)


    def on_login(self, *args):
        username = self.user.get().replace(" ","")
        passwd   = self.passwd.get().replace(" ","")
        if args:
            event, *other = args
            print(event.keycode)
        if not username:
            self.userentry.configure(bootstyle="danger")
        if not passwd:
            self.passentry.configure(bootstyle="danger")
        print(username,passwd)
        login_state = self._check_userandpasswd(username,passwd)
        if login_state:
            self.destroy()
        else:
            messagebox.showinfo(
                message="账号或密码错误，请重试 \n",
                title="Error",
            )

    def _check_userandpasswd(self,username,passwd):
        """
        检查账号密码是否正确的函数
        :param username:
        :param passwd:
        :return: bool
        """
        return False

if __name__ == '__main__':
    app = ttk.Window(
        title="登录页面Demo -- Powered by Jackma",
        minsize=(800,300),
        themename="darkly"
    )
    TextView(app)
    app.place_window_center()

    app.mainloop()

如果发生PIL报错请安装 pillow==9.5.0