[英]Tkinter radio buttons always gives values of 0
I'm trying to use radio buttons to define a variable to be used in the rest of my script.我正在尝试使用单选按钮来定义要在脚本的其余部分中使用的变量。
When I run this code, shift is always 0.当我运行此代码时,移位始终为 0。
I have copied and pasted code from online doing something similar, but the values are always 0.我从网上复制并粘贴了类似的代码,但值始终为 0。
I am using Spyder to run python3.我正在使用 Spyder 运行 python3。
Thanks.谢谢。
from tkinter import *
root = Tk()
def pixelShift():
shift = var.get()
print(shift)
var = IntVar()
Radiobutton(root,
text = '1 Pixel',
variable = var,
value = 1,
command = pixelShift
).pack(anchor = W)
Radiobutton(root,
text = '10 Pixels',
variable = var,
value = 10,
command = pixelShift
).pack(anchor = W)
Radiobutton(root,
text = '100 Pixel',
variable = var,
value = 100,
command = pixelShift
).pack(anchor = W)
root.mainloop()
You are creating a new Tk()
instance by using您正在使用创建一个新的Tk()
实例
var = IntVar()
You should use你应该使用
root = Toplevel()
or或者
var = IntVar(root)
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