分享利用python的Tkinter编写登陆注册实例

import tkinter as tk

from tkinter import messagebox

#设置窗口居中

def window_info():

 ws = window.winfo_screenwidth()

 hs = window.winfo_screenheight()

 x = (ws / 2) - 200

 y = (hs / 2) - 200

 print("%d,%d" % (ws, hs))

 return x,y

#设置登陆窗口属性

window = tk.Tk()

window.title('欢迎使用停车场收费系统')

a,b=window_info()

window.geometry("450x300+%d+%d"%(a,b))

#登陆界面的信息

tk.Label(window,text="停车场收费系统",font=("宋体",32)).place(x=80,y=50)

tk.Label(window,text="账号：").place(x=120,y=150)

tk.Label(window,text="密码：").place(x=120,y=190)

#显示输入框

var_usr_name = tk.StringVar()

#显示默认账号

var_usr_name.set('1400370101')

entry_usr_name=tk.Entry(window,textvariable=var_usr_name)

entry_usr_name.place(x=190,y=150)

var_usr_pwd = tk.StringVar()

#设置输入密码后显示*号

entry_usr_pwd = tk.Entry(window,textvariable=var_usr_pwd,show='*')

entry_usr_pwd.place(x=190,y=190)

#登陆函数

def usr_login():

 #获取输入的账号密码

 usr_name = var_usr_name.get()

 usr_pwd = var_usr_pwd.get()

 #获取存储的账户信息，此处使用的是数据库，调用数据库查询函数，也可以使用其他方式，如文件等

 dicts = SQL.load('login')

 print(dicts)

 bool = False

 for row in dicts:

 print(row.get("name"))

 if usr_name == row["name"]:

  bool = True

  pwd = row["password"]

  print(row)

 if bool == True:

 if usr_pwd == pwd:

  tk.messagebox.showinfo(title='Welcome', message='How are you?' +usr_name)

  mainwindow()

 else:

  tk.messagebox.showerror(message='对不起，输入错误，请重试！')

 else:

 is_sign_up = tk.messagebox.askyesno('Welcome', '您还没有注册，是否现在注册呢？')

 if is_sign_up:

  usr_sign_up()

#注册账号

def usr_sign_up():

 def sign_to_Pyhon():

 np = new_pwd.get()

 npc = new_pwd_confirm.get()

 nn = new_name.get()

 dicts = SQL.load('login')

 print(dicts)

 bool = False

 for row in dicts:

  if nn == row["name"]:

  bool = True

  print(row)

 if np!=npc:

  tk.messagebox.showerror('对不起','两次密码输入不一致！')

 elif bool:

  tk.messagebox.showerror(('对不起','此账号已经存在!'))

 else:

  try:

  SQL.insert_login(str(nn),str(np))

  tk.messagebox.showinfo('Welcome','您已经注册成功！')

  except:

  tk.messagebox.showerror(('注册失败!'))

  window_sign_up.destroy()

 #创建top窗口作为注册窗口

 window_sign_up = tk.Toplevel(window)

 window_sign_up.geometry('350x200')

 window_sign_up.title('注册')

 new_name = tk.StringVar()

 new_name.set('1400370115')

 tk.Label(window_sign_up,text='账号:').place(x=80,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='密码:').place(x=80, 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='再次输入:').place(x=80,y=90)

 entry_usr_pwd_again = tk.Entry(window_sign_up,textvariable=new_pwd_confirm,show='*')

 entry_usr_pwd_again.place(x=150, y=90)

 btn_again_sign_up = tk.Button(window_sign_up,text='注册',command=sign_to_Pyhon)

 btn_again_sign_up.place(x=160,y=130)

#登陆和注册按钮

btn_login = tk.Button(window,text="登陆",command=usr_login)

btn_login.place(x=170,y=230)

btn_sign_up = tk.Button(window,text="注册",command=usr_sign_up)

btn_sign_up.place(x=270,y=230)

window.mainloop()