刚开始学python 用Tkinter做一个登录界面遇到一个小问题

Hober_yao 2016-07-09 11:16:18

# -- coding: utf-8 --

from calculator import *

from Tkinter import *

import sqlite3





class LoginFrame(Tk):

    def __init__(self):

        def Login():

            cursor.execute("SELECT * FROM USERDATA where NAME=?", name_display.get())

            res = cursor.fetchone()

            for row in res:

                if (row[2] == pwd_display.get()):

                    Calculator.mainloop()

                else:

                    print "username or password is not correct"



        def Exit():

            print pwd_display.get()

        Tk.__init__(self)

        self.title("Login Frame")

        self.geometry('300x100')

        self.resizable(width=False, height=False)

        name_display = StringVar()

        pwd_display = StringVar()

        name_display.set('')

        pwd_display.set('')

        # two label

        Label(self, text='UserName:').grid(row=0)

        Label(self, text='PassWord:').grid(row=1)

        # two entry

        e1 = Entry(self, textvariable=name_display).grid(row=0, column=1)

        e2 = Entry(self, textvariable=pwd_display, show='*').grid(row=1, column=1)

        # two button

        Button(self, text='login', comman=Login).grid(row=2, column=1)

        Button(self, text='exit', comman=Exit).grid(row=2, column=2)



def createTable(conn):

    sql = '''CREATE TABLE USERDATA (ID INT PRIMARY KEY,NAME TEXT,PASSWORD TEXT,LEVEL INT)'''

    conn.execute(sql)

def insertUser(cursor, id, name, pwd, level):

    cursor.execute("SELECT * FROM USERDATA where NAME =(?)", (name,))

    res = cursor.fetchall()

    count = 0

    for i in res:

        count += 1

    if count > 0:

        print 'data exists'

    else:

        cursor.execute("INSERT INTO USERDATA VALUES(?,?,?,?)", (id, name, pwd, level))





conn = sqlite3.connect('mydatabase')

#createTable(conn)

cursor = conn.cursor()

insertUser(cursor, 1, 'xxx', '123456', 1)

insertUser(cursor, 2, 'yyy', '123456', 1)

insertUser(cursor, 3, 'zzz', '123456', 1)

conn.commit()



login = LoginFrame()

login.mainloop()