TKinter Radiobutton

TKinter Radiobutton

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詳情

創建windows

window = tk.Tk()
window.title('my window')
window.geometry('500x500')

創建顯示label

var1 = tk.StringVar()
l = tk.Label(window, bg='yellow', width=4, textvariable=var1)
l.pack()

循環刷新窗口

window.mainloop()  # 不斷刷新主窗口

顯示函數

def print_selection():
    l.config(text='you have selected ' + var.get())

Radiobutton

# 以下意爲Radiobutton在window控件上
# 顯示爲Option A
# 選擇時更改變量var的值爲A
# 並且會激活print_selection函數
r1 = tk.Radiobutton(window, text='Option A',
                    variable=var, value='A',
                    command=print_selection)
r1.pack()
r2 = tk.Radiobutton(window, text='Option B',
                    variable=var, value='B',
                    command=print_selection)
r2.pack()
r3 = tk.Radiobutton(window, text='Option C',
                    variable=var, value='C',
                    command=print_selection)
r3.pack()

完整代碼

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# Youtube video tutorial: https://www.youtube.com/channel/UCdyjiB5H8Pu7aDTNVXTTpcg
# Youku video tutorial: http://i.youku.com/pythontutorial

import tkinter as tk

window = tk.Tk()
window.title('my window')
window.geometry('500x500')

var = tk.StringVar()
l = tk.Label(window, bg='yellow', width=20, text='empty')
l.pack()


def print_selection():
    l.config(text='you have selected ' + var.get())


# 以下意爲Radiobutton在window控件上
# 顯示爲Option A
# 選擇時更改變量var的值爲A
# 並且會激活print_selection函數
r1 = tk.Radiobutton(window, text='Option A',
                    variable=var, value='A',
                    command=print_selection)
r1.pack()
r2 = tk.Radiobutton(window, text='Option B',
                    variable=var, value='B',
                    command=print_selection)
r2.pack()
r3 = tk.Radiobutton(window, text='Option C',
                    variable=var, value='C',
                    command=print_selection)
r3.pack()

window.mainloop()