登录成功后如何打开主窗口

3回答

摇曳的蔷薇

您的身份验证的想法很好。在更高级的级别，您需要开始使用数据库管理您的 tkinter 应用程序（我建议使用 postgresql）并从那里管理您的用户和密码为了防止 X 按钮的错误，您可以在类初始化中添加以下行：login.protocol("WM_DELETE_WINDOW",self.event_X)在Login类中也加入这个函数：（定义event_X函数）    def event_X(self):        if messagebox.askokcancel("Exit", "Are you sure you want to exit?"):            exit()这将是最终代码：from tkinter import Tk, Label, Button, messageboxfrom tkinter import *##### Login Page #####class Login_Page:    def __init__(self, login=Tk()):  # This is my first change so i already initialize a Tk window inside the class        """        :type login: object        """        self.login = login        login.protocol("WM_DELETE_WINDOW",self.event_X)        login.title("Login - Airsoft GunRack 3.0")        login.geometry("450x230+450+170")    # Creating describtioneves        self.username = Label(login, text="Username:")        self.username.place(relx=0.285, rely=0.298, height=20, width=55)        self.password = Label(login, text="Password:")        self.password.place(relx=0.285, rely=0.468, height=20, width=55)        # Creating Buttons        self.login_button = Button(login, text="Login")        self.login_button.place(relx=0.440, rely=0.638, height=30, width=60)        self.login_button.configure(command=self.login_user)        self.login_completed = IntVar()        self.exit_button = Button(login, text="Exit")  # , command=master.quit)        self.exit_button.place(relx=0.614, rely=0.638, height=30, width=60)        self.exit_button.configure(command=self.exit_login)        # Creating entry boxes        self.username_box = Entry(login)        self.username_box.place(relx=0.440, rely=0.298, height=20, relwidth=0.35)        self.password_box = Entry(login)        self.password_box.place(relx=0.440, rely=0.468, height=20, relwidth=0.35)        self.password_box.configure(show="*")        self.password_box.configure(background="white")        # Creating checkbox        self.var = IntVar()        self.show_password = Checkbutton(login)        self.show_password.place(relx=0.285, rely=0.650, relheight=0.100, relwidth=0.125)        self.show_password.configure(justify='left')        self.show_password.configure(text='''Show''')        self.show_password.configure(variable=self.var, command=self.cb)    def event_X(self):        if messagebox.askokcancel("Exit", "Are you sure you want to exit?"):            exit()    def cb(self, ):        if self.var.get() == True:            self.password_box.configure(show="")        else:            self.password_box.configure(show="*")# Giving function to login process    def login_user(self):        name = self.username_box.get()        password = self.password_box.get()        login_completed = self.login_completed.get()        if name == "user" and password == "1234":            # messagebox.showinfo("Login page", "Login successful!")            self.login.destroy()  # Removes the toplevel window            # self.main_win.deiconify() #Unhides the root window            self.login_completed == 1        else:            messagebox.showwarning("Login Failed - Acess Denied", "Username or Password incorrect!")        # return    def exit_login(self):        msg = messagebox.askyesno("Exit login page", "Do you really want to exit?")        if (msg):            exit()    def mainloop_window(self):  # This is the class function that helps me to mainloop the window        self.login.mainloop()login_page = Login_Page()  # I dont need to pass the root now since its initialized inside the classlogin_page.mainloop_window()  # Just mainlooping the authentication window    ##### Main Window #####class Main_Win:    def __init__(self, main_win=Tk()):  # This is my first change so i already initialize a Tk window inside the class        self.main_win = main_win        main_win.title("Airsoft GunRack 3.0")        main_win.geometry("900x500+250+130")    def mainloop_window(self):  # This is the class function that helps me to mainloop the window        self.main_win.mainloop()main_win = Main_Win()  # I dont need to pass the root now since its initialized inside the classmain_win.mainloop_window()  # Just mainlooping the authentication window

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qq_花开花谢_0

是的，@Jim Erginbash！这就是我希望它工作的方式。所以，我为主要胜利创建了一个单独的班级。我想到了认证程序。如果登录成功，我的想法是创建一个值为“true”的新变量（login_completed）。在第二步中，main_win 类将在取消隐藏主窗口（撤回命令）之前检查该值是否为“真”。可悲的是，我无法让它正常工作。不知道在哪里添加代码以及如何添加。这是迄今为止的新代码。为了更好地理解，我还重命名了一些参数，它们也属于窗口。我还注意到，通过使用框架按钮 (X) 关闭登录页面，它还将继续执行创建主窗口的代码。你知道怎么杀死它吗？从 tkinter 导入 Tk、标签、按钮、消息框从 tkinter 导入 *    ##### Login Page #####class Login_Page:def __init__(self,login = Tk()): #This is my first change so i already initialize a Tk window inside the class    """    :type login: object    """    self.login = login    login.title("Login - Airsoft GunRack 3.0")    login.geometry("450x230+450+170")    # Creating describtions    self.username = Label(login, text="Username:")    self.username.place(relx=0.285, rely=0.298, height=20, width=55)    self.password = Label(login, text="Password:")    self.password.place(relx=0.285, rely=0.468, height=20, width=55)    # Creating Buttons    self.login_button = Button(login, text="Login")    self.login_button.place(relx=0.440, rely=0.638, height=30, width=60)    self.login_button.configure(command=self.login_user)    self.login_completed = IntVar()    self.exit_button = Button(login, text="Exit")  # , command=master.quit)    self.exit_button.place(relx=0.614, rely=0.638, height=30, width=60)    self.exit_button.configure(command=self.exit_login)    # Creating entry boxes    self.username_box = Entry(login)    self.username_box.place(relx=0.440, rely=0.298, height=20, relwidth=0.35)    self.password_box = Entry(login)    self.password_box.place(relx=0.440, rely=0.468, height=20, relwidth=0.35)    self.password_box.configure(show="*")    self.password_box.configure(background="white")    # Creating checkbox    self.var = IntVar()    self.show_password = Checkbutton(login)    self.show_password.place(relx=0.285, rely=0.650, relheight=0.100, relwidth=0.125)    self.show_password.configure(justify='left')    self.show_password.configure(text='''Show''')    self.show_password.configure(variable=self.var, command=self.cb)def cb(self, ):    if self.var.get() == True:        self.password_box.configure(show="")    else:        self.password_box.configure(show="*")# Giving function to login processdef login_user(self):    name = self.username_box.get()    password = self.password_box.get()    login_completed = self.login_completed.get()    if name == "user" and password == "1234":        #messagebox.showinfo("Login page", "Login successful!")        self.login.destroy()  #Removes the toplevel window        #self.main_win.deiconify() #Unhides the root window        self.login_completed == 1    else:        messagebox.showwarning("Login Failed - Acess Denied", "Username or Password incorrect!")        #returndef exit_login(self):    msg = messagebox.askyesno("Exit login page", "Do you really want to exit?")    if (msg):        exit()def mainloop_window(self): #This is the class function that helps me to mainloop the window    self.login.mainloop()login_page = Login_Page() # I dont need to pass the root now since its initialized inside the classlogin_page.mainloop_window() # Just mainlooping the authentication window   ##### Main Window #####class Main_Win:def __init__(self,main_win = Tk()): #This is my first change so i already initialize a Tk window inside the class    """    :type main_win: object    """    #main_win.withdraw()    #self.main_win.deiconify() #Unhides the root window    self.main_win = main_win    main_win.title("Airsoft GunRack 3.0")    main_win.geometry("900x500+250+130")def mainloop_window(self): #This is the class function that helps me to mainloop the window    self.main_win.mainloop()main_win = Main_Win() # I dont need to pass the root now since its initialized inside the classmain_win.mainloop_window() # Just mainlooping the authentication window

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隔江千里

当您创建root = Tk()的新实例时，您将自动打开一个小的默认窗口。1st) 你有 root = Tk()2nd）你有初始化的主人3rd) 你有main_win因此你有三个窗口您必须避免在课堂外再次调用 Tk() 类，这就是烦人的第三个窗口问题。我建议做的是添加一个定义，它只会主循环你的AirsoftGunRack窗口。这是最终代码：from tkinter import Tk, Label, Button, messageboxfrom tkinter import *class AirsoftGunRack:    def __init__(self,master = Tk()): #This is my first change so i already initialize a Tk window inside the class        """        :type master: object        """        ##### Login Page #####        self.master = master        master.title("Login - Airsoft GunRack 3.0")        master.geometry("450x230+450+170")        # Creating describtions        self.username = Label(master, text="Username:")        self.username.place(relx=0.285, rely=0.298, height=20, width=55)        self.password = Label(master, text="Password:")        self.password.place(relx=0.285, rely=0.468, height=20, width=55)        # Creating Buttons        self.login_button = Button(master, text="Login")        self.login_button.place(relx=0.440, rely=0.638, height=30, width=60)        self.login_button.configure(command=self.login_user)        self.exit_button = Button(master, text="Exit")  # , command=master.quit)        self.exit_button.place(relx=0.614, rely=0.638, height=30, width=60)        self.exit_button.configure(command=self.exit_login)        # Creating entry boxes        self.username_box = Entry(master)        self.username_box.place(relx=0.440, rely=0.298, height=20, relwidth=0.35)        self.password_box = Entry(master)        self.password_box.place(relx=0.440, rely=0.468, height=20, relwidth=0.35)        self.password_box.configure(show="*")        self.password_box.configure(background="white")        # Creating checkbox        self.var = IntVar()        self.show_password = Checkbutton(master)        self.show_password.place(relx=0.285, rely=0.650, relheight=0.100, relwidth=0.125)        self.show_password.configure(justify='left')        self.show_password.configure(text='''Show''')        self.show_password.configure(variable=self.var, command=self.cb)    def cb(self, ):        if self.var.get() == True:            self.password_box.configure(show="")        else:            self.password_box.configure(show="*")    # Giving function to login process    def login_user(self):        name = self.username_box.get()        password = self.password_box.get()        if name == "user" and password == "1234":            self.main_win.deiconify() #Unhides the root window            self.master.destroy()  #Removes the toplevel window            #messagebox.showinfo("Login page", "Login successful!")        else:            messagebox.showwarning("Login failed", "Username or password incorrect!")    def exit_login(self):        msg = messagebox.askyesno("Exit login page", "Do you really want to exit?")        if (msg):            exit()    def mainloop_window(self): #This is the class function that helps me to mainloop the window        self.master.mainloop()main_win = Toplevel()main_win.title("Main Window")main_win.title("Main Window")main_win.geometry("800x800+450+170")gunrack = AirsoftGunRack() # I dont need to pass the root now since its initialized inside the classgunrack.mainloop_window() # Just mainlooping the authentication window#main_win.withdraw()main_win.mainloop()请注意，我在此代码中添加了四个注释。在第 6、82、93、94 行此更改将打开您处理的窗口。这些当然是我对您的代码块的唯一更改。如果它影响您在 tkinter 项目中的表现，请评论此答案。

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