如何删除由循环制作的按钮

本文介绍了如何删除由循环制作的按钮的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

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  from tkinter import *


class Main:

    def __init__(self, root):

        for i in range(0, 9):
            for k in range(0, 9):
                Button(root, text=" ").grid(row=i, column=k)


        root.mainloop()


root = Tk()

x = Main(root)

如果按钮未分配给变量，如何在单击时删除按钮?

How do I delete a button when it is clicked if it isn't assigned to a variable ?

推荐答案

问题:如果按钮没有分配给变量，我如何在它被点击时删除它?

Question: How do I delete a button when it is clicked if it isn't assigned to a variable ?

核心点:

.bind('', self.on_click)

使用事件回调，为您提供 Grid 坐标以将移除的 Button 替换为其他小部件，例如带有图像.

Using a event callback, provides you with the Grid coordinate to replace the removed Button with a other widget, like a Label with a image.

import tkinter as tk


class Button(tk.Button):
    def __init__(self, parent, **kwargs):
        super().__init__(parent, **kwargs)
        self.bind('<Button-1>', self.on_click)

    def on_click(self, event):
        w = event.widget
        row, column = w.grid_info().get('row'), w.grid_info().get('column')
        print('coord:{}'.format((row, column)))
        w.destroy()


class App(tk.Tk):
    def __init__(self):
        super().__init__()

        for row in range(0, 9):
            for column in range(0, 9):
                Button(self, text=" ").grid(row=row, column=column)


if __name__ == '__main__':
    App().mainloop()

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