主函式main.py

from tkinter import *
from LoginPage import *

root = Tk()
root.title('小程式')
LoginPage(root)
root.mainloop()

from tkinter import *
from tkinter.messagebox import *
from MainPage import *

class LoginPage(object):
	def __init__(self, master=None):
		self.root = master #定義內部變數root
		self.root.geometry('%dx%d' % (300, 180)) #設定視窗大小
		self.username = StringVar()
		self.password = StringVar()
		self.createPage()

	def createPage(self):
		self.page = Frame(self.root) #建立Frame
		self.page.pack()
		Label(self.page).grid(row=0, stick=W)
		Label(self.page, text = '賬戶: ').grid(row=1, stick=W, pady=10)
		Entry(self.page, textvariable=self.username).grid(row=1, column=1, stick=E)
		Label(self.page, text = '密碼: ').grid(row=2, stick=W, pady=10)
		Entry(self.page, textvariable=self.password, show='*').grid(row=2, column=1, stick=E)
		Button(self.page, text='登陸', command=self.loginCheck).grid(row=3, stick=W, pady=10)
		Button(self.page, text='退出', command=self.page.quit).grid(row=3, column=1, stick=E)

	def loginCheck(self):
		name = self.username.get()
		secret = self.password.get()
		if name=='wangliang' and secret=='123456':
			self.page.destroy()
			MainPage(self.root)
		else:
			showinfo(title='錯誤', message='賬號或密碼錯誤！')
 

from tkinter import *
from view import *  #選單欄對應的各個子頁面

class MainPage(object):
	def __init__(self, master=None):
		self.root = master #定義內部變數root
		self.root.geometry('%dx%d' % (600, 400)) #設定視窗大小
		self.createPage()

	def createPage(self):
		self.inputPage = InputFrame(self.root) # 建立不同Frame
		self.queryPage = QueryFrame(self.root)
		self.countPage = CountFrame(self.root)
		self.aboutPage = AboutFrame(self.root)
		self.inputPage.pack() #預設顯示資料錄入介面
		menubar = Menu(self.root)
		menubar.add_command(label='資料錄入', command = self.inputData)
		menubar.add_command(label='查詢', command = self.queryData)
		menubar.add_command(label='統計', command = self.countData)
		menubar.add_command(label='關於', command = self.aboutDisp)
		self.root['menu'] = menubar  # 設定選單欄

	def inputData(self):
		self.inputPage.pack()
		self.queryPage.pack_forget()
		self.countPage.pack_forget()
		self.aboutPage.pack_forget()

	def queryData(self):
		self.inputPage.pack_forget()
		self.queryPage.pack()
		self.countPage.pack_forget()
		self.aboutPage.pack_forget()

	def countData(self):
		self.inputPage.pack_forget()
		self.queryPage.pack_forget()
		self.countPage.pack()
		self.aboutPage.pack_forget()

	def aboutDisp(self):
		self.inputPage.pack_forget()
		self.queryPage.pack_forget()
		self.countPage.pack_forget()
		self.aboutPage.pack()
 

from tkinter import *
from tkinter.messagebox import *

class InputFrame(Frame): # 繼承Frame類
	def __init__(self, master=None):
		Frame.__init__(self, master)
		self.root = master #定義內部變數root
		self.itemName = StringVar()
		self.importPrice = StringVar()
		self.sellPrice = StringVar()
		self.deductPrice = StringVar()
		self.createPage()

	def createPage(self):
		Label(self).grid(row=0, stick=W, pady=10)
		Label(self, text = '藥品名稱: ').grid(row=1, stick=W, pady=10)
		Entry(self, textvariable=self.itemName).grid(row=1, column=1, stick=E)
		Label(self, text = '進價 /元: ').grid(row=2, stick=W, pady=10)
		Entry(self, textvariable=self.importPrice).grid(row=2, column=1, stick=E)
		Label(self, text = '售價 /元: ').grid(row=3, stick=W, pady=10)
		Entry(self, textvariable=self.sellPrice).grid(row=3, column=1, stick=E)
		Label(self, text = '優惠 /元: ').grid(row=4, stick=W, pady=10)
		Entry(self, textvariable=self.deductPrice).grid(row=4, column=1, stick=E)
		Button(self, text='錄入').grid(row=6, column=1, stick=E, pady=10)


class QueryFrame(Frame): # 繼承Frame類
	def __init__(self, master=None):
		Frame.__init__(self, master)
		self.root = master #定義內部變數root
		self.itemName = StringVar()
		self.createPage()

	def createPage(self):
		Label(self, text='查詢介面').pack()

class CountFrame(Frame): # 繼承Frame類
	def __init__(self, master=None):
		Frame.__init__(self, master)
		self.root = master #定義內部變數root
		self.createPage()

	def createPage(self):
		Label(self, text='統計介面').pack()


class AboutFrame(Frame): # 繼承Frame類
	def __init__(self, master=None):
		Frame.__init__(self, master)
		self.root = master #定義內部變數root
		self.createPage()

	def createPage(self):
		Label(self, text='關於介面').pack()