python GUI 그리드

import tkinter.ttk as ttk
from tkinter import *
import tkinter.messagebox as msgbox

root = Tk()
root.geometry("1280x720")



Button(root, text = "F16", width = 10, height=3).grid(row = 0, column=0)
Button(root, text = "F17", width = 10, height=3).grid(row = 0, column=1)
Button(root, text = "F18", width = 10, height=3).grid(row = 0, column=2)
Button(root, text = "F19", width = 10, height=3).grid(row = 0, column=3)

Button(root, text = "clear", width = 10, height=3).grid(row = 1, column=0)
Button(root, text = "=", width = 10, height=3).grid(row = 1, column=1)
Button(root, text = "/", width = 10, height=3).grid(row = 1, column=2)
Button(root, text = "*", width = 10, height=3).grid(row = 1, column=3)

Button(root, text = "7", width = 10, height=3).grid(row = 2, column=0)
Button(root, text = "8", width = 10, height=3).grid(row = 2, column=1)
Button(root, text = "9", width = 10, height=3).grid(row = 2, column=2)
Button(root, text = "-", width = 10, height=3).grid(row = 2, column=3)

Button(root, text = "4", width = 10, height=3).grid(row = 3, column=0)
Button(root, text = "5", width = 10, height=3).grid(row = 3, column=1)
Button(root, text = "6", width = 10, height=3).grid(row = 3, column=2)
Button(root, text = "+", width = 10, height=3).grid(row = 3, column=3)

Button(root, text = "1", width = 10, height=3).grid(row = 4, column=0)
Button(root, text = "2", width = 10, height=3).grid(row = 4, column=1)
Button(root, text = "3", width = 10, height=3).grid(row = 4, column=2)
Button(root, text = "enter", width = 10, height=3).grid(row = 4, column=3)

numEdit = Entry(root, width = 50)
numEdit.insert(END, "숫자를 입력하세요")
numEdit.grid(row = 6, column=0, columnspan=4)


root.mainloop() #이벤트 체크

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