python制作登陆窗口_Python可视化编程（Tkinter）-登录界面的制作（源代码）,登陆,源码...

# -*- coding: utf-8 -*-

"""

Created on Mon Dec 9 16:52:17 2019

"""

from tkinter import *

from tkinter.messagebox import *

from sign_up import *

from home_windows import *

def login_window():

import tkinter

import tkinter as tk

import os

import os.path

import sqlite3

root=tkinter.Tk()

#root=tkinter.Toplevel()

img = os.getcwd() + '\\images'

dat = os.getcwd() + '\\data'

root.title('English-Study-System-登陆界面')

root.geometry('600x400+600+300')

root.resizable(False,False)

photo=tkinter.PhotoImage(file=img + "\\login.png")

label=tkinter.Label(root,image=photo) #图片

label.pack()

def yanzheng():

username = entry1.get()

password = entry2.get()

#print(username,password)

cn=sqlite3.connect('English_study_system.db')

cur=cn.cursor()

n = cur.execute('select * from user')

a = n.fetchall()

c = 0

d = 0

for i in a:

if i[0] == username:

c = 1

if i[1] == password:

d = 1

break

if username == "" or password == "":

tkinter.messagebox.showerror('Error', '您好像忘了输入什么东西!')

elif c == 0:

tkinter.messagebox.showerror('Error', '该用户名尚未注册!')

elif c == 1 and d == 0:

tkinter.messagebox.showerror('Error', '您输入的账号和密码不匹配!')

else:

tkinter.messagebox.showinfo('Welcome', '您已登陆成功!')

user = str(username)

with open(dat +'\\username.txt', 'w',encoding='utf-8') as file:

file.write(user)

root.destroy()

home_windows()

button1 = tkinter.Button(root,text='登陆',bg = 'lightcyan',fg = 'green',activebackground = 'orange', command=yanzheng)

button1.place(x=120, y=280, width=160, height=35)

button2 = tkinter.Button(root,text='注册',bg = 'wheat',fg = 'red',activebackground = 'red', command=usr_sign_up)

button2.place(x=320, y=280, width=160, height=35)

lb1 = tkinter.Label(root,text="用户：",fg = 'indigo', bg = 'white')

lb1.place(x = 180, y = 135, width = 50, height = 35)

with open('data/username.txt', 'r', encoding='utf-8') as file:

a = file.read()

name = tk.StringVar()

entry1 = tkinter.Entry(root,width=200, bd = 0, bg = 'white', textvariable=name)

entry1.insert(0,str(a))

entry1.place(x = 230, y=135,width=200,height=35)

lb2 = tkinter.Label(root,text="密码：",fg = 'indigo', bg = 'white')

lb2.place(x = 180, y = 180, width = 50, height = 35)

entry2 = tkinter.Entry(root,width=200, bd = 0, bg = 'white', show='*')

entry2.place(x = 230,y = 180,width=200,height = 35)

cn=sqlite3.connect('English_study_system.db')

cur=cn.cursor()

#showinfo("logo","数据库连接成功,单击确定继续操作")

try:

cur.execute('create table user(username char(16)PRIMARY key, password char (16))')

#showinfo("logo","数据表创建成功")

except:

#showinfo("logo","现在可以开始报名")

p = 1

cn.close()

root.mainloop()