当我在 tkinter GUI 中单击时，我想更改按钮的背景颜色答案

【问题标题】：I want to change the background color of the button when I click in tkinter GUI当我在 tkinter GUI 中单击时，我想更改按钮的背景颜色
【发布时间】：2019-09-22 14:33:31
【问题描述】：

我有一个 python GUI 代码可以打开和关闭。我需要修改代码，比如当我按下打开按钮时，按钮颜色变为绿色，当我按下关闭按钮时，打开按钮颜色变为默认颜色。

from serial import*
from time import*
from tkinter import*

window = Tk()

def open_command():
    print("Opening")

def close_command():
    print("Closing")

b = Button(window, text = "Open", font = ("Times New Roman", 12), fg = "green", bg = "white", height = 1, width = 5, command = open_command).pack()
b = Button(window, text = "Close", font = ("Times New Roman", 12), fg = "red", bg = "white", height = 1, width = 5, command = close_command).pack()

mainloop()

单击打开按钮时，打开按钮的颜色需要从默认颜色更改为绿色。如果我们点击关闭按钮，关闭按钮颜色需要变为红色，打开按钮颜色变为默认颜色。

【问题讨论】：

标签： python tkinter

【解决方案1】：

您可以简单地使用.config(bg=...) 将按钮的背景颜色更改为您想要的任何颜色，如下所示：

import tkinter as tk

window = tk.Tk()

def open_command():
    open_btn.config(bg='green')
    close_btn.config(bg='white')

def close_command():
    open_btn.config(bg='white')
    close_btn.config(bg='red')

font=('Times New Roman', 12)
open_btn = tk.Button(window, text='Open', font=font, fg='green', bg='white', width=5, command=open_command)
open_btn.pack()
close_btn = tk.Button(window, text='Close', font=font, fg='red', bg='white', width=5, command=close_command)
close_btn.pack()

window.mainloop()

【讨论】：