class Radiobutton 放在类中出错

mosa123

from tkinter import *

class Speed:
    def __init__(self,root):
        speedFrame = Frame(root)
        speed = IntVar()
        speed_F = Radiobutton(speedFrame, text='Fast', variable=speed, value=1)
        speed_S = Radiobutton(speedFrame, text='Slow', variable=speed, value=0)
        speed_F.pack()
        speed_S.pack()
        speedFrame.pack()

root = Tk()

speed = Speed(root)

speedFrame = Frame(root)
speed = IntVar()
speed_F = Radiobutton(speedFrame, text='Fast2', variable=speed, value=1)
speed_S = Radiobutton(speedFrame, text='Slow2', variable=speed, value=0)
speed_F.pack()
speed_S.pack()
speedFrame.pack()

mainloop()

Radiobutton写到class中就出错了，（1）鼠标滑过时会被选中，（2）不能显示默认项。求教这是为什么？

Pliosauroidea

from tkinter import *

class Speed:
    def __init__(self,root):
        speedFrame = Frame(root)
        self.speed = IntVar()
        self.speed_F = Radiobutton(speedFrame, text='Fast', variable=speed, value=1)
        self.speed_S = Radiobutton(speedFrame, text='Slow', variable=speed, value=0)
        self.speed_F.pack()
        self.speed_S.pack()
        speedFrame.pack()

root = Tk()

speed = Speed(root)

speedFrame = Frame(root)
speed = IntVar()
speed_F = Radiobutton(speedFrame, text='Fast2', variable=speed, value=1)
speed_S = Radiobutton(speedFrame, text='Slow2', variable=speed, value=0)
speed_F.pack()
speed_S.pack()
speedFrame.pack()

mainloop()

Twilight6

类中 speed 重新赋值导致触发屏蔽机制，试试这样：

from tkinter import *

class Speed:
    def __init__(self,root):
        global speed
        speedFrame = Frame(root)
        speed2 = IntVar()
        speed_F = Radiobutton(speedFrame, text='Fast', variable=speed2, value=1)
        speed_S = Radiobutton(speedFrame, text='Slow', variable=speed2, value=0)
        speed_F.pack()
        speed_S.pack()
        speedFrame.pack()

root = Tk()

speed = Speed(root)

speedFrame = Frame(root)
speed1 = IntVar()
speed_F = Radiobutton(speedFrame, text='Fast2', variable=speed1, value=1)
speed_S = Radiobutton(speedFrame, text='Slow2', variable=speed1, value=0)
speed_F.pack()
speed_S.pack()
speedFrame.pack()

mainloop()

或者在 __init__ 下 添加一行 global speed

mosa123

贴上运行正确的代码

from tkinter import *

class Speed:
    def __init__(self,root):
        root.speedFrame = Frame(root)
        self.speed = IntVar()
        speed_F = Radiobutton(root.speedFrame, text='Fast', variable=self.speed, value=1)
        speed_S = Radiobutton(root.speedFrame, text='Slow', variable=self.speed, value=0)
        speed_F.pack()
        speed_S.pack()
        root.speedFrame.pack()

root = Tk()
speed = Speed(root)


mainloop()