windowDemo1 - GitPress.io

Example Python program windowDemo1.py

Modules

import tkinter as tk
from tkinter import *
import pickle,os
from tkinter.messagebox import *

Methods

def usr_login():
def usr_sign_up():

Code

Python tkinter example

'''
创建登陆窗口
'''

import tkinter as tk
from tkinter import *
import pickle,os
from tkinter.messagebox import *


window=tk.Tk()
window.title("for windowDemo1")
window.geometry('450x400')

#定义画布
canvas=tk.Canvas(window,height=200,width=500)
image_file=tk.PhotoImage(file='D:/Program Files/1.gif')  #加载图片文件
image=canvas.create_image(0,0,anchor='nw',image=image_file)
canvas.pack(side='top')

#user information
tk.Label(window,text='User name:').place(x=50,y=150)
tk.Label(window,text='Password:').place(x=50,y=190)

var_usr_name=tk.StringVar() #定义变量
var_usr_name.set('[email protected]')
entry_usr_name=tk.Entry(window,textvariable=var_usr_name)
entry_usr_name.place(x=160,y=150)

var_usr_pwd=tk.StringVar()
entry_usr_pwd=tk.Entry(window,textvariable=var_usr_pwd,show='*')
entry_usr_pwd.place(x=160,y=190)


def usr_login():
    # 获取用户名与密码
    usr_name = var_usr_name.get()
    usr_pwd = var_usr_pwd.get()
    try:
        abspath=os.path.abspath('.')
        data='test-absdcad'
        # path=r'c:\usrs\lenovo\deskop'
        filepath=os.path.join(abspath,'usrs_info.pickle')
        with open(filepath) as usrfile:
            usrinfo=pickle.load(usrfile)
    except FileNotFoundError:
        #若没有读取到usrfile，程序会创建这个文件，将admin的用户和密码写入。
        with open(filepath,'wb') as usrfile:
            usrinfp={'admin':'admin'}
            pickle.dump(usrinfo,usrfile)

    if usr_name in usrinfo:
        if usr_pwd==usrinfo[usr_name]:
            tk.messagebox.showinfo()
def usr_sign_up():
    pass
#login and sign up button
btn_login=tk.Button(window,text='Login',command=usr_login)
btn_login.place(x=160,y=230)

btn_sign_up=tk.Button(window,text='Sign up',command=usr_sign_up)
btn_sign_up.place(x=240,y=230)


window.mainloop()

Useful Links

Articles: https://python-commandments.org/
Python shell: https://bsdnerds.org/learn-python/
Tutorial: https://pythonprogramminglanguage.com/