tkinter學習_radiobutton

#encoding=utf-8 import tkinter as tk window = tk.Tk() window.title("測試單選框") window.geometry("400x200") var = tk.StringVar() label_1 = tk.Label(window,bg="yellow",textvar=var,width=10,height=1,text="label_1") label_1.pack() def print_selection(): #label的config函數可以改變label對象裏定義的參數的值 label_1.config(text= "你選擇了選項: " + var.get()) label_1.config(bg="green") label_1.config(width=12) #定義單選按鈕，var=var,value="A" 指把value的值賦值給var radiobutton_1 = tk.Radiobutton(window,text="選項A",var=var,value="A",command=print_selection) radiobutton_1.pack() radiobutton_2 = tk.Radiobutton(window,text="選項B",var=var,value="B",command=print_selection) radiobutton_2.pack() radiobutton_3 = tk.Radiobutton(window,text="選項C",var=var,value="C",command=print_selection) radiobutton_3.pack() window.mainloop()