代码重构方便之后扩展（主要是循环生成Radiobuttion那里）

# -*- coding: utf-8 -*-# importimport tkinter as tk  # 1 importsfrom tkinter import ttkfrom tkinter import scrolledtext as stwin = tk.Tk()  # 2 Create instancewin.title("Python GUI")  # 3 Add a title# win.resizable(0, 0)           # 4 Disable resizing the GUI# add a label                   #4aLabel = ttk.Label(win, text="输入文本：")aLabel.grid(column=0, row=0)  # 5ttk.Label(win, text="choose a number").grid(column=1, row=0)number = tk.StringVar()# only be able to select the values we have programmed into the Combobox:state="readonly"numberChosen = ttk.Combobox(win, width=12, textvariable=number, state="readonly")numberChosen.grid(column=1, row=1)numberChosen["values"] = (1, 2, 3, 4, 5, 6, 12)numberChosen.current(3)def clickMe():    action.configure(text="hello " + name.get() + "-" + number.get())    # aLabel.configure(foreground="red")# add a button                   #4action = ttk.Button(win, text="点我", command=clickMe)action.grid(column=3, row=1)# action.configure(state="disabled")  # Disable the Button Widget# Adding a Textbox Entry widget    # 5name = tk.StringVar()nameEntered = ttk.Entry(win, width=12, textvariable=name)nameEntered.grid(column=0, row=1)nameEntered.focus()  # Place cursor into name Entry# Creating three checkbuttons    # 1# 0 (unchecked) or 1 (checked) so the type of the variable is a tkinter integer.chVarDis = tk.IntVar()  # 2check1 = tk.Checkbutton(win, text="Disabled", variable=chVarDis, state='disabled')  # 3check1.select()  # 4check1.grid(column=0, row=4, sticky=tk.W)  # 5chVarUn = tk.IntVar()  # 6check2 = tk.Checkbutton(win, text="UnChecked", variable=chVarUn)check2.deselect()  # 8check2.grid(column=1, row=4, sticky=tk.W)  # 9chVarEn = tk.IntVar()  # 10check3 = tk.Checkbutton(win, text="Enabled", variable=chVarEn)check3.select()  # 12check3.grid(column=2, row=4, sticky=tk.W)  # 13# Radiobutton Globals #1 # COLOR1 = "DarkSalmon" #2# COLOR2 = "honeydew" #3# COLOR3 = "AliceBlue" #4# Radiobutton Callback # 5# create three Radiobuttons using one variable(绑定到一个变量上可以在单选按钮中只选中一个)# radVar = tk.IntVar()# def radCall(): #6#       radSel=radVar.get()#       if   radSel == 1: win.configure(background=COLOR1)#       elif radSel == 2: win.configure(background=COLOR2)#       elif radSel == 3: win.configure(background=COLOR3)## rad1 = tk.Radiobutton(win, text=COLOR1, variable=radVar, value=1, command=radCall)              # 9# rad1.grid(column=0, row=5, sticky=tk.W)  # 10# rad2 = tk.Radiobutton(win, text=COLOR2, variable=radVar, value=2, command=radCall)                             # 11# rad2.grid(column=1, row=5, sticky=tk.W)  # 12# rad3 = tk.Radiobutton(win, text=COLOR3, variable=radVar, value=3, command=radCall)                             # 13# rad3.grid(column=2, row=5, sticky=tk.W)  # 14# 代码重构（refactor our code）# First, we change our Radiobutton global variables into a list.colors = ["DarkSalmon", "honeydew", "AliceBlue"]# create three Radiobuttons using one variableradVar = tk.IntVar()# Next we are selecting a non-existing index value for radVar.# (如果不设置为range范围外的值，初始化页面默认会选中第一个并且不会触发变更背景色的回调函数)radVar.set(99)# We have also changed the callback function to be zero-based, using the list instead of module-level global variables.# Radiobutton callback functiondef radCall():    radSel = radVar.get()    if radSel == 0:        win.configure(background=colors[0])    elif radSel == 1:        win.configure(background=colors[1])    elif radSel == 2:        win.configure(background=colors[2])# Now we are creating all three Radiobutton widgets within one loop.for col in range(3):    curRad = 'rad' + str(col)    curRad = tk.Radiobutton(win, text=colors[col], variable=radVar, value=col, command=radCall)    curRad.grid(column=col, row=5, sticky=tk.W)# Using a scrolled Text controlscrollW = 30scrollH = 3scroll = st.ScrolledText(win, width=scrollW, height=scrollH, wrap=tk.WORD)scroll.grid(column=0, columnspan=3)scroll.focus()win.mainloop()  # 5 Start GUI

运行效果图

Paste_Image.png