tkinter实现登录注册窗口

逃离我推掉我的手 2022-05-17 13:39 256阅读 0赞

# -*- coding:utf-8 -*-
    import pickle  # 存放数据的模块
    import tkinter as tk
    import tkinter.messagebox
    
    window = tk.Tk()
    window.title("my window")
    window.geometry("450x300")
    
    canvas = tk.Canvas(window, height=200, width=500)
    image_file = tk.PhotoImage(file="welcome.gif")
    image = canvas.create_image(0, 0, anchor='nw', image=image_file)
    canvas.pack(side='top')
    
    tk.Label(window, text='User name:').place(x=50, y=150)
    tk.Label(window, text='Password name:').place(x=50, y=190)
    
    var_usr_name = tk.StringVar()
    var_usr_name.set('example@python.com')
    
    var_usr_pwd = tk.StringVar()
    
    entry_usr_name = tk.Entry(window, textvariable=var_usr_name)
    entry_usr_name.place(x=160, y=150)
    entry_usr_pwd = tk.Entry(window, textvariable=var_usr_pwd, show='*')
    entry_usr_pwd.place(x=160, y=190)
    
    
    def usr_login():
        usr_name = var_usr_name.get()
        usr_pwd = var_usr_pwd.get()
    
        try:
            with open("usrs_info.pickle", "rb") as usr_file:
                usrs_info = pickle.load(usr_file)
        except FileNotFoundError:
            with open("usrs_info.pickle", "wb") as usr_file:  # with open with语句可以自动关闭资源
                usrs_info = {"admin": "admin"}  # 以字典的形式保存账户和密码
                pickle.dump(usrs_info, usr_file)
    
        if usr_name in usrs_info:
            if usr_pwd == usrs_info[usr_name]:
                tk.messagebox.showinfo(title="Welcome", message="How are you! " + usr_name)
            else:
                tk.messagebox.showerror(message="Error,your password is wrong,try again")
        else:
            is_sign_up = tk.messagebox.askyesno("Welcome", "You have not sign up yet.Sign up today?")
            if is_sign_up:
                usr_sign_up()
    
    
    def usr_sign_up():
        def sign_to_Python():
            np = new_pwd.get()
            npf = new_pwd_confirm.get()
            nn = new_name.get()
            with open("usrs_info.pickle", "rb") as usr_file:
                exist_usr_info = pickle.load(usr_file)
            if np != npf:
                tk.messagebox.showerror("Error", "Password and confirm password must be the same!")
            elif nn in exist_usr_info:
                tk.messagebox.showerror("Error", "The user has already signed up! ")
            else:
                exist_usr_info[nn] = np
                with open("usrs_info.pickle", "wb") as usr_file:
                    pickle.dump(exist_usr_info, usr_file)
    
                tk.messagebox.showinfo("Welcome", "You have successfully signed up!")
                # close window
                window_sign_up.destroy()
    
        window_sign_up = tk.Toplevel(window)
        window_sign_up.geometry("350x200")
        window_sign_up.title("sign up window")
    
        new_name = tk.StringVar()
        new_name.set("example@python.com")
        tk.Label(window_sign_up, text="User name:").place(x=10, y=10)
        entry_new_name = tk.Entry(window_sign_up, textvariable=new_name)
        entry_new_name.place(x=150, y=10)
    
        new_pwd = tk.StringVar()
        tk.Label(window_sign_up, text="Password:").place(x=10, y=50)
        entry_usr_pwd = tk.Entry(window_sign_up, textvariable=new_pwd, show='*')
        entry_usr_pwd.place(x=150, y=50)
    
        new_pwd_confirm = tk.StringVar()
        tk.Label(window_sign_up, text="Confirm password:").place(x=10, y=90)
        entry_usr_pwd_confirm = tk.Entry(window_sign_up, textvariable=new_pwd_confirm, show='*')
        entry_usr_pwd_confirm.place(x=150, y=90)
    
        btn_confirm_sign_up = tk.Button(window_sign_up, text="Sign up", command=sign_to_Python)
        btn_confirm_sign_up.place(x=150, y=130)
    
    
    # login and sign up
    btn_login = tk.Button(window, text="Login", command=usr_login)
    btn_login.place(x=170, y=230)
    
    btn_sign_up = tk.Button(window, text="Sign up", command=usr_sign_up)
    btn_sign_up.place(x=270, y=230)
    
    window.mainloop()

登录界面

![70][]

提示注册：

![70 1][]

点击“是”，跳转到注册界面：

![70 2][]

[70]: /images/20220517/4d8d4eb130ff49c0bd7492501dd15440.png
[70 1]: /images/20220517/e3e8b86455c74c05be708db612b7582c.png
[70 2]: /images/20220517/99a7b723a1314f23aee5c44dd565d7aa.png