python-3.x - 当我检查另一个 checkButton 时，如何检查两个 python tkinter checkButtons？

Question

我是 tkinter 的新手，在使用 checkButton() 时遇到了问题。我想要它，这样当我检查“按钮 3”时，“按钮 1”和“按钮 2”也会被检查。到目前为止，这是我的代码。我看了这个问题:Can i make one checkbutton in tkinter check all the other checkbuttons? ，这导致我使用 .select() 方法，但是当我运行 GUI 并检查按钮 3 时，按钮 1 和 2 不会被检查。我应该如何编写函数，以便当我选中“按钮 3”时，“按钮 1”和“按钮 2”也被选中？

from tkinter import *

root = Tk()

button1_bool = BooleanVar()
button1 = checkButton(root, text = "Button 1", variable = button1_bool, onvalue = True, offvalue = False)
button1.pack()

button2_bool = BooleanVar()
button2 = checkButton(root, text = "Button 2", variable = button2_bool, onvalue = True, offvalue = False)
button2.pack()

def button3ischecked():
    if button3.get() == True:
        button1.select()
        button2.select()

button3_bool = BooleanVar()
button3 = checkButton(root, text = "Button 3", variable = button3_bool, onvalue = True, offvalue = False, command = button3ischecked)

root.mainloop()

Answer 1

您不使用 .get() 来检查复选框的状态 - 只需评估分配给它的 bool 变量。

from tkinter import *

root = Tk()

button1_bool = BooleanVar()
button1 = Checkbutton(root, text = "Button 1", variable = button1_bool, onvalue = True, offvalue = False)
button1.pack()

button2_bool = BooleanVar()
button2 = Checkbutton(root, text = "Button 2", variable = button2_bool, onvalue = True, offvalue = False)
button2.pack()

def button3ischecked():
    if button3_bool:
        button1.select()
        button2.select()

button3_bool = BooleanVar()
button3 = Checkbutton(root, text = "Button 3", variable = button3_bool, onvalue = True, offvalue = False, command = button3ischecked)
button3.pack()

root.mainloop()

希望这对您有所帮助。