Question

我用Tkinter制作了一个带有一些按钮的简单窗口。一个按钮在开始时处于禁用状态，但我希望它在按下另一个按钮后再次变为正常状态。那么如何在代码运行时更改按钮的属性？

from tkinter import *

def com():
    print ('activate')

def win():
    window = Tk()
    window.geometry ('500x500')
    b1 = Button(text = 'Disabled', pady = '10', padx = '10', state = DISABLED)
    b1.place(x=100, y=10)
    b2 = Button(text = 'activate', pady = '10', padx = '10', command=com)
    b2.place(x=10, y=10)
    window.mainloop

win()

Answer 1

您必须使用<buttonname>.config(state=STATE)命令，其中STATE为：

NORMAL（默认）
ACTIVE
DISABLED

Source我冒昧地创建编辑代码来测试它，它确实有效，见下文！

from Tkinter import *

def com1():
    print ('activate')
    b1.config(state = ACTIVE)
    b2.config(state = DISABLED) #toggles the buttons

def com2():
    print('de-activate')
    b1.config(state = DISABLED)
    b2.config(state = ACTIVE) #toggles the buttons

def win():
    global b1
    global b2 #This is to allow passing b1 and b2 to com1 and com2, but may not be the most "efficient" way to do this...
    window = Tk()
    window.geometry ('500x500')
    b1 = Button(text = 'Disabled', pady = '10', padx = '10', state = DISABLED, command = com2) #command com2 added here
    b1.place(x = 100, y = 10)
    b2 = Button(text = 'activate', pady = '10', padx = '10', command = com1) #com changed to com1
    b2.place(x = 10, y = 10)

    window.mainloop()

win()

混合器中奇怪的材料故障

1 个答案: