python tkinter pickle 实现注册登陆页面

#_*_coding:utf-8 _*_ #auther :LEO.TAN #buildtime :2019/1/15 18:03 #file :login.py #IDE :PyCharm import pickle # 存放数据的模块 import tkinter as tk import tkinter.messagebox window = tk.Tk() window.title("注册登陆页面") window.geometry("500x400") canvas = tk.Canvas(window, height=300, 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=200) tk.Label(window, text='Password:').place(x=50, y=250) var_usr_name = tk.StringVar() var_usr_name.set('请输入用户名') var_usr_pwd = tk.StringVar() #var_usr_pwd.set('请输入密码') entry_usr_name = tk.Entry(window, textvariable=var_usr_name) entry_usr_name.place(x=160, y=200) entry_usr_pwd = tk.Entry(window, textvariable=var_usr_pwd, show='*') entry_usr_pwd.place(x=160, y=250) 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: #注意这个地方用到了pickle可以百度一下使用方法 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(): signpwd = sign_pwd.get() signpwdconfirm = sign_pwd_confirm.get() signname = sign_name.get() with open("usrs_info.pickle", "rb") as usr_file: exist_usr_info = pickle.load(usr_file) if signpwd != signpwdconfirm: tk.messagebox.showerror("Error", "Password and confirm password must be the same!") elif signname in exist_usr_info: tk.messagebox.showerror("Error", "The user has already signed up! ") else: exist_usr_info[signname] = signpwd 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("注册页面") sign_name = tk.StringVar() sign_name.set('请输入用户名') tk.Label(window_sign_up, text="User name:").place(x=10, y=10) entry_new_name = tk.Entry(window_sign_up, textvariable=sign_name) entry_new_name.place(x=150, y=10) sign_pwd = tk.StringVar() tk.Label(window_sign_up, text="Password:").place(x=10, y=50) entry_usr_pwd = tk.Entry(window_sign_up, textvariable=sign_pwd, show='*') entry_usr_pwd.place(x=150, y=50) sign_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=sign_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=155, y=300) btn_sign_up = tk.Button(window, text="Sign up", command=usr_sign_up) btn_sign_up.place(x=270, y=300) window.mainloop()