无论网格定位如何

Question

我正在尝试为一个项目编码GUI，并且正在尝试将入口文本框放在中心。我尝试更改行和列值，但它们只是将框放在左上方。关于我如何将文本框居中的任何想法？ （问题是Takeentry功能）

import tkinter as tk
from tkinter import *

# Startup
root = tk.Tk()
root.geometry("600x400")
root.title('SpellIt')
canvas = tk.Canvas(root,width=600, height=400)
canvas.grid(columnspan=3, rowspan=10)

def startPage(root):
    start_page = tk.Frame(root)
    start_page.grid(columnspan=3, rowspan=10)
    instructions = tk.Label(root, text="Spell It!", font=("Impact", 44))
    instructions.grid(columnspan=3, column=0, row=0)
    start_text = tk.StringVar()
    start_button = tk.Button(root, textvariable=start_text, command=lambda: changepage(), font=("Impact", 30))
    start_text.set("Start")
    start_button.grid(columnspan=3, column=0, row=5)


def gamePage(root):
    game_page = tk.Frame(root, width=600, height=400)
    game_page.grid(columnspan=3, rowspan=10)
    tk.Label(game_page, text = "This is the game page").grid(row = 0)

def changepage():
    global pagenum, root
    for widget in root.winfo_children():
        widget.destroy()
    if pagenum == 1:
        gamePage(root)
        takeEntry()
        clock(60)
        pagenum = 2

# Timer
def clock(count):
    global root
    timer_label = tk.Label(root, text="", font=("Impact", 20))
    timer_label.place(x=500, y=15)
    # change text in label
    timer_label['text'] = count

    if count > 0:
        # call countdown again 1s
        root.after(1000, clock, count - 1)

def takeEntry():
    entry1 = Entry(root, width = 30, font=("Impact", 10)).grid(row=1, column=1) #problem is here

pagenum = 1
startPage(root)

root.mainloop()

Answer 1

您的代码有很多问题，我决定简化它。现在，条目出现在中心中的解决问题：

from tkinter import Tk, Entry, Label, Button
def changepage():
    global pagenum, timer_label, entryWidget
    for widget in root.winfo_children():
        widget.destroy()
    if pagenum == 1:
        pagenum = 2
        Label(root, text = "This is the game page").pack()
        entry_widget = Entry(root, width = 30, font=("Impact", 10))
        entry_widget.pack()
        timer_label = Label(root, text="", font=("Impact", 20))
        timer_label.place(x=500, y=15)
        clock(60)
# Timer
def clock(count):
    # change text in label
    timer_label['text'] = count
    if count > 0:
        # call countdown again 1s
        root.after(1000, clock, count - 1)
root = Tk()
root.geometry("600x400")
root.title('SpellIt')
Label( root, text="Spell It!", font=("Impact", 44)).pack()
Button(root, text="Start", command=changepage, font=("Impact", 30)).pack()
pagenum = 1
root.mainloop()

ps 上面的代码仍然凌乱。它混合.pack和。放置（确定您想要哪个并坚持下去），并且还有其他问题，但是...与原始代码相比，您应该更容易建立它。