我想从一个类到另一个类获取一个变量。 我要使用的变量是配置文件，该文件位于第129行。我想在该类之外使用该变量，并在代码底部向下使用AddJob（）类。如果有人可以给我一个解决方案，我将不胜感激，因为我一直在努力使它工作几天。
import tkinter
import tkinter as tk
from tkinter import ttk
from tkinter import *
from tkinter import messagebox
from tkinter.scrolledtext import ScrolledText
import sqlite3
from sqlite3 import Error
import webbrowser
import re
Background = ("WHITE")
LARGE_FONT = ("Verdana", 9)
HOME_FONT = ("Times", 15, "bold")
EMAIL_FONT = ("times", 9)
def DataBase():
with sqlite3.connect("UserInfo.db") as db:
cursor = db.cursor()
cursor.execute('''
CREATE TABLE IF NOT EXISTS users(
userID INTEGER PRIMARY KEY,
username STRING,
password STRING,
firstname STRING,
surname STRING,
email STRING);
''')
cursor.execute ('''
CREATE TABLE IF NOT EXISTS jobs(
jobID INTEGER PRIMARY KEY,
userID
jobtitle STRING,
jobdescript STRING);
''')
class MsgBox(tkinter.Toplevel):
def __init__(self, title = "", message = ""):
tkinter.Toplevel.__init__(self)
self.title(title)
self.label = tkinter.Label(self, text = message)
self.label['bg'] = 'white'
self.label.pack(ipadx = 10, ipady = 10, fill = 'both', expand = True)
self.button = tkinter.Button(self, text = "OK")
self.button['command'] = self.destroy
self.button.pack(pady = 10, padx = 10, ipadx = 20, side = 'right')
class JobApp(tk.Tk):
def __init__(self, *args, **kwargs):
tk.Tk.__init__(self, *args, **kwargs)
container = tk.Frame(self)
container.pack(side = "top", fill = "both", expand = True)
container.grid_rowconfigure(0, weight = 1)
container.grid_columnconfigure(0, weight = 1)
self.frames = {}
#this is where you add a page to the program so you can add different functions
for F in (LoginPage, SignUp, HomePage, MenuPage, MapPage, ProfilePage, SettingsPage, JobsPage, AddJob):
frame = F(container, self)
self.frames[F] = frame
frame.grid(row = 0, column = 0, sticky = "nsew")
self.show_frame(LoginPage)
def show_frame(self, cont):
frame = self.frames[cont]
frame.tkraise()
DataBase()
class LoginPage(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self,parent)
self.Logo = PhotoImage(file = "Logo.gif")
def Log_in():
with sqlite3.connect("UserInfo.db") as db:
cursor = db.cursor()
user = (self.UserEntry.get())
Pass = (self.PassEntry.get())
if user == "" or Pass == "":
msg = MsgBox("", "Make sure to fill all the boxes\nPlease try again")
msg.label['font'] = 'Verdana 10'
msg.button['text'] = 'Close'
msg.button.pack(expand = True)
else:
dictionary = {}
cursor.execute("SELECT username, password FROM users")
for pword in cursor.fetchall():
(key ,val) = tuple(pword)
dictionary[str(key)] = val
if user in dictionary:
if dictionary[user] == Pass:
sql = '''SELECT userID FROM users WHERE username = ?'''
cursor.execute(sql, (user,))
profile = cursor.fetchall()
controller.show_frame(HomePage)
self.UserEntry.delete(0, 'end')
self.PassEntry.delete(0, 'end')
else:
messagebox.showinfo("", "Enter the correct password")
self.PassEntry.delete(0, 'end')
self.logo = tk.Label(self, image = self.Logo)
self.User = tk.Label(self, text = "User Name:").place(x = 72, y = 130)
self.Pass = tk.Label(self, text = "Password:").place(x = 80, y = 155)
self.UserEntry = Entry(self)
self.PassEntry = Entry(self, show = '*')
self.login = ttk.Button(self, text = "Login", command = Log_in)
self.signup = ttk.Button(self, text = "Create account",
command = lambda:controller.show_frame(SignUp))
self.UserEntry.place(width = 100, height = 20, x = 140, y = 130)
self.PassEntry.place(width = 100, height = 20, x = 140, y = 155)
self.login.place(x = 80, y = 180)
self.signup.place(x = 160, y = 180)
self.logo.place(x = 110, y = 20)
class SignUp(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self,parent)
def Save_info():
DataBase()
with sqlite3.connect("UserInfo.db") as db:
cursor = db.cursor()
FnameEntry = self.FnameEntry.get()
SnameEntry = self.SnameEntry.get()
EmailEntry = self.EmailEntry.get()
UserNameEntry = self.UserNameEntry.get()
PassWordEntry = self.PassWordEntry.get()
RenterPasswordEntry = self.RenterPasswordEntry.get()
check = []
cursor.execute("SELECT * FROM users")
for row in cursor.fetchall():
check.append(row)
print (check)
if not re.match(r"[^@]+@[^@]+\.[^@]+", EmailEntry):
messagebox.showinfo("ERROR", "the email that you entered was not valid\nPlease try again")
if len(FnameEntry) == 0 or len(SnameEntry) == 0 or len(EmailEntry) == 0 or len(UserNameEntry) == 0 or len(PassWordEntry) == 0 or len(RenterPasswordEntry) == 0:
messagebox.showinfo("No fill", "You didn't fill all the fields")
else:
if len(UserNameEntry) < 6:
messagebox.showinfo("Not long enough", "your username wasn't long enough\nPlease try again")
else:
if len(PassWordEntry) < 6:
messagebox.showinfo("Not long enough", "Your password wasn't long enough\nPlease try again")
else:
if RenterPasswordEntry != PassWordEntry:
messagebox.showinfo("pass word match up", "Your passwords didn't seem to match up\nPlease try again")
else:
if UserNameEntry in check:
messagebox.showinfo("", "The user name that you entered already exsists\nPlease enter a different one")
self.UserNameEntry.delete(0, 'end')
self.PassWordEntry.delete(0, 'end')
self.RenterPasswordEntry.delete(0, 'end')
else:
YesNo = messagebox.askokcancel("Continue", "would you like to go back to the login page")
if YesNo == True:
self.FnameEntry.delete(0, 'end')
self.SnameEntry.delete(0, 'end')
self.EmailEntry.delete(0, 'end')
self.UserNameEntry.delete(0, 'end')
self.PassWordEntry.delete(0, 'end')
self.RenterPasswordEntry.delete(0, 'end')
cursor.execute("""
INSERT INTO users (username,password,firstname,surname,email)
VALUES (?, ?, ?, ?, ?)
""", (UserNameEntry, PassWordEntry, FnameEntry, SnameEntry, EmailEntry))
db.commit()
cursor.execute("SELECT * FROM users")
print(cursor.fetchall())
controller.show_frame(LoginPage)
self.x = ttk.Label(self, text = "fill in the information to create an account.\n\nBoxes with * next to them must be filled in.\nYour Username must be longer than 6 characters.\nYour password must be longer than 6 characters.\n", font = LARGE_FONT).grid(row = 0, column = 0, columnspan = 2)
self.Fname = ttk.Label(self, text = "First Name *:", font = LARGE_FONT).grid(row = 1, sticky = "e")
self.Sname = ttk.Label(self, text = "Surname *:", font = LARGE_FONT).grid(row = 2, sticky = "e")
self.Email = ttk.Label(self, text = "Email Address *:", font = LARGE_FONT).grid(row = 3, sticky = "e")
self.UserName = ttk.Label(self, text = "User name *:", font = LARGE_FONT).grid(row = 4, sticky = "e")
self.PassWord = ttk.Label(self, text = "Password *:", font = LARGE_FONT).grid(row = 5, sticky = "e")
self.ReneterPassword = ttk.Label(self, text = "Confirm password *:", font = LARGE_FONT).grid(row = 6, sticky = "e")
self.blank = ttk.Label(self, text = "").grid(row = 8)
Continue = ttk.Button(self, text = "Continue",
command = Save_info).grid(row = 9, rowspan = 2, stick = "e")
Cancel = ttk.Button(self , text = "Cancel",
command= lambda:controller.show_frame(LoginPage)).grid(row = 9, column = 1, stick = "w")
self.FnameEntry = Entry(self)
self.SnameEntry = Entry(self)
self.EmailEntry = Entry(self)
self.UserNameEntry = Entry(self)
self.PassWordEntry = Entry(self)
self.RenterPasswordEntry = Entry(self)
self.FnameEntry.grid(row = 1, column = 1, sticky = "w")
self.SnameEntry.grid(row = 2, column = 1, sticky = "w")
self.EmailEntry.grid(row = 3, column = 1, sticky = "w")
self.UserNameEntry.grid(row = 4, column = 1, sticky = "w")
self.PassWordEntry.grid(row = 5, column = 1, sticky = "w")
self.RenterPasswordEntry.grid(row = 6, column = 1, sticky = "w")
class HomePage(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self,parent)
def on_entry_click(event):
if self.postcode.get() == 'Postcode':
self.postcode.delete(0, "end")
self.postcode.insert(0, '')
self.postcode.config(fg = 'black')
def on_focusout(event):
if self.postcode.get() == '':
self.postcode.delete(0, "end")
self.postcode.insert(0, 'Postcode')
self.postcode.config(fg = 'grey')
def on_entry_click2(event):
if self.searchjob.get() == 'Enter a job you want to search for..':
self.searchjob.delete(0, "end")
self.searchjob.insert(0, '')
self.searchjob.config(fg = 'black')
def on_focusout2(event):
if self.searchjob.get() == '':
self.searchjob.delete(0, "end")
self.searchjob.insert(0, 'Enter a job you want to search for..')
self.searchjob.config(fg = 'grey')
Homepagecanvas = Canvas(self, width = 320, height = 568)
Homepagecanvas.pack()
TopBarHome = Homepagecanvas.create_rectangle(0, 0, 320, 50, fill = 'light grey')
Home = Homepagecanvas.create_text((80, 25), text = "Home", font = HOME_FONT)
MenuButton = ttk.Button(self, text = "Menu",
command = lambda:controller.show_frame(MenuPage)).place(height = 40, width = 40, x = 5, y = 5)
self.postcode = Entry(self)
self.searchjob = Entry(self)
self.postcode.insert(0, 'Postcode')
self.postcode.bind('<FocusIn>', on_entry_click)
self.postcode.bind('<FocusOut>', on_focusout)
self.postcode.config(fg = 'grey')
self.postcode.place(width = 60, height = 30, x = 10, y = 60)
self.searchjob.insert(0, 'Enter a job you want to search for..')
self.searchjob.bind('<FocusIn>', on_entry_click2)
self.searchjob.bind('<FocusOut>', on_focusout2)
self.searchjob.config(fg = 'grey')
self.searchjob.place(width = 220, height = 30, x = 80, y = 60)
scrollbar = Scrollbar(self)
scrollbar.place(width = 10, height =
450, x = 10, y = 100)
Joblist = Listbox(self, yscrollcommand = scrollbar.set)
for line in range(100):
Joblist.insert(END, "This is line number " + str(line))
Joblist.place(height = 450, width = 280, x = 25, y = 100)
scrollbar.config(command = Joblist.yview)
class MenuPage(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self,parent)
Homepagecanvas = Canvas(self, width = 320, height = 568)
Homepagecanvas.pack()
TopBarHome = Homepagecanvas.create_rectangle(0, 0, 320, 50, fill = 'light grey')
Home = Homepagecanvas.create_text((40, 15), text = "Menu", font = HOME_FONT)
Home = Homepagecanvas.create_text((160, 35), text = "here you can navigate to other pages in the application")
Home = tk.Button(self,
text = "Home Page",
relief = GROOVE,
command = lambda:controller.show_frame(HomePage)).place(width = 100, height = 30, x = 10, y = 60)
Map = tk.Button(self,
text = "Map",
relief = GROOVE,
command = lambda:controller.show_frame(MapPage)).place(width = 100, height = 30, x = 10, y = 90)
Profile = tk.Button(self,
text = "Profile",
relief = GROOVE,
command = lambda:controller.show_frame(ProfilePage)).place(width = 100, height = 30, x = 10, y = 120)
Settings = tk.Button(self,
text = "Settings",
relief = GROOVE,
command = lambda:controller.show_frame(SettingsPage)).place(width = 100, height = 30, x = 10, y = 150)
Jobs = tk.Button(self,
text = "Jobs",
relief = GROOVE,
command = lambda:controller.show_frame(JobsPage)).place(width = 100, height = 30, x = 10, y = 180)
class MapPage(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self,parent)
MapPageCanvas = Canvas(self, width = 320, height = 568)
MapPageCanvas.pack()
TopBar = MapPageCanvas.create_rectangle(0, 0, 320, 50,
fill = 'light grey')
Home = MapPageCanvas.create_text((80, 25),
text = "Map",
font = HOME_FONT)
MenuButton = ttk.Button(self, text = "Menu",
command = lambda:controller.show_frame(MenuPage)).place(height = 40, width = 40, x = 5, y = 5)
class ProfilePage(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self,parent)
def on_entry_click(event):
if self.postcode.get() == 'Postcode':
self.postcode.delete(0, "end")
self.postcode.insert(0, '')
self.postcode.config(fg = 'black')
def on_focusout(event):
if self.postcode.get() == '':
self.postcode.delete(0, "end")
self.postcode.insert(0, 'Postcode')
self.postcode.config(fg = 'grey')
ProfilePageCanvas = Canvas(self, width = 320, height = 568)
ProfilePageCanvas.pack()
TopBar = ProfilePageCanvas.create_rectangle(0, 0, 320, 50,
fill = 'light grey')
Profile = ProfilePageCanvas.create_text((80, 25), text = "Profile",
font = HOME_FONT)
MenuButton = ttk.Button(self, text = "Menu",
command = lambda:controller.show_frame(MenuPage)).place(height = 40, width = 40, x = 5, y = 5)
def logout():
result = messagebox.askokcancel("Logout", "would you like to logout")
if result == True:
controller.show_frame(LoginPage)
Logout = ttk.Button(self, text = "Logout",
command = logout).place(width = 60, height = 40, x = 255 , y = 5)
class SettingsPage(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self,parent)
MapPageCanvas = Canvas(self, width = 320, height = 568)
MapPageCanvas.pack()
TopBar = MapPageCanvas.create_rectangle(0, 0, 320, 50,
fill = 'light grey')
Home = MapPageCanvas.create_text((90, 25),
text = "Settings",
font = HOME_FONT)
MenuButton = ttk.Button(self, text = "Menu",
command = lambda:controller.show_frame(MenuPage)
).place(height = 40, width = 40, x = 5, y = 5)
def BG():
app.configure(background = Background)
def Toggle():
if DarkTheme.config('relief')[-1] == 'flat':
DarkTheme.config(relief = "sunken", bg = 'grey')
else:
DarkTheme.config(relief = "flat", bg = 'white')
Background = "DARK GRAY"
BG()
DarkTheme = tk.Button(self,
bg = 'white',
highlightbackground = 'black',
text = "Dark Theme",
pady = 5, padx = 5,
relief = "flat",
command = Toggle)
DarkTheme.place(x = 5, y = 60)
class JobsPage(tk.Frame):
def __init__(self, parent, controller):
tk.Frame.__init__(self,parent)
MapPageCanvas = Canvas(self, width = 320, height = 568)
MapPageCanvas.pack()
TopBar = MapPageCanvas.create_rectangle(0, 0, 320, 50,
fill = 'light grey')
Home = MapPageCanvas.create_text((80, 25),
text = "Jobs",
font = HOME_FONT)
MenuButton = ttk.Button(self, text = "Menu",
command = lambda:controller.show_frame(MenuPage)).place(height = 40, width = 40, x = 5, y = 5)
addjob = ttk.Button(self, text = "Add Job",
command = lambda:controller.show_frame(AddJob)).place(height = 40, width = 60, x = 255, y = 5)
class AddJob(tk.Frame, LoginPage):
def __init__(self, parent, controller):
tk.Frame.__init__(self,parent)
def dbAddJob():
JobT = self.Jt.get("1.0", 'end').rstrip('\n')
JobD = self.Jd.get("1.0", 'end').rstrip('\n')
with sqlite3.connect("UserInfo.db") as db:
cursor = db.cursor()
if JobT == "" or JobD == "":
messagebox.showinfo("Invalid","please fill in the boxes or cancel")
else:
aj = messagebox.askokcancel("Continue", "Job added click ok to continue\nor cancel or change what you have added")
if aj == True:
cursor.execute("""
INSERT INTO jobs (jobtitle, jobdescript)
VALUES (?, ?)
""", (JobT, JobD))
db.commit()
self.Jt.delete('1.0', END)
self.Jd.delete('1.0', END)
controller.show_frame(JobsPage)
cursor.execute("SELECT * FROM jobs")
print(cursor.fetchall())
MapPageCanvas = Canvas(self, width = 320, height = 568)
MapPageCanvas.pack()
TopBar = MapPageCanvas.create_rectangle(0, 0, 320, 50,
fill = 'light grey')
Home = MapPageCanvas.create_text((100, 25),
text = "Add a Job",
font = HOME_FONT)
MenuButton = ttk.Button(self, text = "Back",
command = lambda:controller.show_frame(JobsPage)).place(height = 40, width = 40, x = 5, y = 5)
self.Addjobbutton = ttk.Button(self, text = "Add",
command = dbAddJob).place(width = 60, height = 30, x = 90, y = 520)
self.Cancel = ttk.Button(self, text = "cancel",
command = lambda:controller.show_frame(JobsPage)).place(width = 60, height = 30, x = 170, y = 520)
self.Jt = ScrolledText(self)
self.Jd = ScrolledText(self)
self.Jt.place(height = 30, width = 310, x = 5, y = 60)
self.Jd.place(height = 400, width = 310, x = 5, y = 100)
app = JobApp()
app.geometry('320x568')
app.resizable(0,0)
app.mainloop()
答案 0 :(得分：0)
您是否要使其成为全局变量，例如？
sound = None
class Cat(object):
global sound
"""
All your code
"""
sound = "meow"
现在，如果您使用“全局声音”，则可以从任何地方访问全局变量，现在声音会返回：
>>> sound
'meow'
这样，您就可以在没有类或函数的情况下访问变量。