如何检查登录和密码条目,如果它们是正确的,将打开新标签。如果条目不正确,将显示错误消息。用户还应该能够注册帐户
from tkinter import *
import sqlite3
import tkinter
import time
root = Tk()
root.title("Sale System")
root.geometry("500x500")
root.configure(background='grey')
Label(root, text="Checkout System", background='grey').grid(row=0, column=1)
Label(root, text="Time:", background='grey').grid(row=1, column=1)
def clock():
t=time.strftime('%I:%M:%S',time.localtime())
if t!='':
labeltime.config(text=t)
root.after(100,clock)
labeltime=Label(root, text="Current System Time", background='grey')
labeltime.grid(row=1, column=1)
time1 = clock()
def new_winF(): #Opens registration confirmation window
newwin = Toplevel(root)
display = Label(newwin, text="Your account has been created. Please log in with your new details. This window may be closed.")
display.pack()
Label(root, text="Username:", background='grey').grid(row=3, column=0, sticky=W)
Label(root, text="Password:", background='grey').grid(row=4, column=0, sticky=W)
e1 = Entry(root)
e1.grid(row=3, column=1)
if e1 == 'yes':
command =new_winF
e2 = Entry(root)
e2.grid(row=4, column=1)
LoginButton = Button(root, text="Login", width=10)
LoginButton.grid(row=5, column=1)
RegisterButton = Button(root, text ="Register", command =new_winF, width=10)
RegisterButton.grid(row=6, column=1)
root.mainloop()
答案 0 :(得分:0)
描述它的变化太多了。
顺便说一句:我使用Frame
对小工具进行分组,之后我可以展示一个框架(pack()
/ grid()
)并隐藏另一个框架pack_forget()
/ grid_forget()
)。这种方法有更多有用的例子。
import tkinter as tk
import time
# --- functions ---
def clock():
txt = time.strftime('%I:%M:%S', time.localtime())
label_time.config(text=txt)
root.after(1000, clock)
def on_register(): #Opens registration confirmation window
newwin = tk.Toplevel(root)
display = tk.Label(newwin, text="\nYour account has been created.\nPlease log in with your new details.\n\nThis window may be closed.")
display.pack()
tk.Button(newwin, text='Close', command=newwin.destroy).pack()
def on_login(): #Opens registration confirmation window
newwin = tk.Toplevel(root)
if e1.get() == 'admin' and e2.get() == '12345':
display = tk.Label(newwin, text="\nYour are logged in.\n\nThis window may be closed.")
display.pack()
main_page.pack_forget() # hide it
other_page.pack() # show it
else:
display = tk.Label(newwin, text="\nWrong login or password.\n\nThis window may be closed.")
display.pack()
tk.Button(newwin, text='Close', command=newwin.destroy).pack()
def create_main_page():
global label_time
global e1
global e2
frame = tk.Frame(root)
#frame.pack() # don't show it
tk.Label(frame, text="Checkout System", background='grey').grid(row=0, column=1)
tk.Label(frame, text="Time:", background='grey').grid(row=1, column=1)
label_time = tk.Label(frame, text="Current System Time", background='grey')
label_time.grid(row=1, column=1)
clock()
tk.Label(frame, text="Username:", background='grey').grid(row=3, column=0, sticky='w')
tk.Label(frame, text="Password:", background='grey').grid(row=4, column=0, sticky='w')
e1 = tk.Entry(frame)
e1.grid(row=3, column=1)
e2 = tk.Entry(frame)
e2.grid(row=4, column=1)
login_button = tk.Button(frame, text="Login", width=10, command=on_login)
login_button.grid(row=5, column=1)
register_button = tk.Button(frame, text="Register", width=10, command=on_register)
register_button.grid(row=6, column=1)
return frame
def create_other_page():
frame = tk.Frame(root)
#frame.pack() # don't show it
tk.Label(frame, text="You are on other page", background='grey').grid(row=0, column=1)
return frame
# ---- main ---
root = tk.Tk()
root.title("Sale System")
root.geometry("500x500")
root.configure(background='grey')
main_page = create_main_page()
main_page.pack() # show it
other_page = create_other_page()
#other_page.pack() # don't show it yet
root.mainloop()
答案 1 :(得分:0)
创建一个函数并将其绑定到登录按钮以检查您的输入输入。如果匹配,则您的用户名条目应为yes
密码no
,否则将弹出窗口,如果不是,则会弹出弹出它以提醒用户。
from tkinter import *
import sqlite3
from tkinter import messagebox
import tkinter
import time
root = Tk()
root.title("Sale System")
root.geometry("500x500")
root.configure(background='grey')
Label(root, text="Checkout System", background='grey').grid(row=0, column=1)
Label(root, text="Time:", background='grey').grid(row=1, column=1)
def clock():
t=time.strftime('%I:%M:%S',time.localtime())
if t!='':
labeltime.config(text=t)
root.after(100,clock)
labeltime=Label(root, text="Current System Time", background='grey')
labeltime.grid(row=1, column=1)
time1 = clock()
def new_winF(): #Opens registration confirmation window
newwin = Toplevel(root)
display = Label(newwin, text="Your account has been created. Please log in with your new details. This window may be closed.")
display.pack()
Label(root, text="Username:", background='grey').grid(row=3,column=0,sticky=W)
Label(root, text="Password:", background='grey').grid(row=4, column=0,
sticky=W)
def login_fun():
if e1.get() == "yes" and e2.get() == "no":
new_winF()
else:
messagebox.showerror("error","try agian boy")
e1 = Entry(root)
e1.grid(row=3, column=1)
e2 = Entry(root)
e2.grid(row=4, column=1)
LoginButton = Button(root, text="Login", width=10, command=login_fun)
LoginButton.grid(row=5, column=1)
RegisterButton = Button(root, text ="Register", command =new_winF, width=10)
RegisterButton.grid(row=6, column=1)
root.mainloop()