python+tkinter+mysql实现登录注册+修改密码_python实现用户注册,登录,修改密码,注销

import tkinter as tk
from tkinter import *
import webbrowser
import tkinter.messagebox
import sys
import pymysql
from page import StudentMain
 
class StudentLogin(Frame):
    def __init__(self,master=None):
        super().__init__(master)
        self.master = master
        self.pack()
        self.createWidget()
 
    def createWidget(self):
        tk.Label(self,text='学号').grid(row=0,column=0)
        self.ID = tk.IntVar()
        tk.Entry(self,textvariable=self.ID).grid(row=0,column=1)
 
        tk.Label(self,text='密码').grid(row=1,column=0)
        self.password = tk.StringVar()
        tk.Entry(self,textvariable=self.password,show='*').grid(row=1,column=1)
 
        tk.Button(self, text='登陆',  bg='red', fg='white', width=10, relief="flat",command=self.login).grid(row=2, column=0,columnspan=10,pady=10)
        tk.Button(self, text='忘记密码', relief="flat",command=self.ForgetPassword).grid(row=1, column=2, columnspan=10,padx=10)
        tk.Button(self,text='注册',relief='flat',command=self.register).grid(row=0,column=2,padx=10)
    def login(self):
        id = self.ID.get()
        pwd = self.password.get()
 
        #数据库处理
        conn = pymysql.connect(host='localhost',user='root',password='000000',port=3306,database='kaoqin',charset='utf8')
        cur = conn.cursor()
        sql = 'select * from students'
        cur.execute(sql)
        result = cur.fetchall()
        id_list = [it[0] for it in result]
        PAS = result[id_list.index(id)][2]
        if not(id and pwd):
            tk.messagebox.showwarning(title='警告', message=