python tkinter 背景色_python GUI作业：tkinter控件改变背景色

#!/usr/bin/python3

# -*- coding: utf-8 -*-

# 技术支持：https://www.jianshu.com/u/69f40328d4f0

# 技术支持 https://china-testing.github.io/

# https://github.com/china-testing/python-api-tesing/blob/master/practices/tk/tk1.py

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# CreateDate: 2018-11-27

import tkinter as tk

from tkinter import ttk

from tkinter import scrolledtext

win = tk.Tk()

# Add a title

win.title("Python GUI")

# Modify adding a Label

a_label = ttk.Label(win, text="A Label")

a_label.grid(column=0, row=0)

# Modified Button Click Function

def click_me():

action.configure(text='Hello ' + name.get() + ' ' +

number_chosen.get())

# Changing our Label

ttk.Label(win, text="Enter a name:").grid(column=0, row=0)

# Adding a Textbox Entry widget

name = tk.StringVar()

name_entered = ttk.Entry(win, width=12, textvariable=name)

name_entered.grid(column=0, row=1)

# Adding a Button

action = ttk.Button(win, text="Click Me!", command=click_me)

action.grid(column=2, row=1) # <= change column to 2

# Creating three checkbuttons

ttk.Label(win, text="Choose a number:").grid(column=1, row=0)

number = tk.StringVar()

number_chosen = ttk.Combobox(win, width=12, textvariable=number, state='readonly')

number_chosen['values'] = (1, 2, 4, 42, 100)

number_chosen.grid(column=1, row=1)

number_chosen.current(3)

chVarDis = tk.IntVar()

check1 = tk.Checkbutton(win, text="Disabled", variable=chVarDis, state='disabled')

check1.select()

check1.grid(column=0, row=4, sticky=tk.W)

chVarUn = tk.IntVar()

check2 = tk.Checkbutton(win, text="UnChecked", variable=chVarUn)

check2.deselect()

check2.grid(column=1, row=4, sticky=tk.W)

chVarEn = tk.IntVar()

check3 = tk.Checkbutton(win, text="Enabled", variable=chVarEn)

check3.deselect()

check3.grid(column=2, row=4, sticky=tk.W)

# GUI Callback function

def checkCallback(*ignoredArgs):

# only enable one checkbutton

if chVarUn.get(): check3.configure(state='disabled')

else: check3.configure(state='normal')

if chVarEn.get(): check2.configure(state='disabled')

else: check2.configure(state='normal')

# trace the state of the two checkbuttons

chVarUn.trace('w', lambda unused0, unused1, unused2 : checkCallback())

chVarEn.trace('w', lambda unused0, unused1, unused2 : checkCallback())

# First, we change our Radiobutton global variables into a list

colors = ["Blue", "Gold", "Red"]

# We have also changed the callback function to be zero-based, using the list

# instead of module-level global variables

# Radiobutton Callback

def radCall():

radSel=radVar.get()

win.configure(background=colors[radSel])

# create three Radiobuttons using one variable

radVar = tk.IntVar()

# Next we are selecting a non-existing index value for radVar

radVar.set(99)

# Now we are creating all three Radiobutton widgets within one loop

for col in range(3):

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 control

scr = scrolledtext.ScrolledText(win, width=30, height=3, wrap=tk.WORD)

scr.grid(column=0, columnspan=3)

name_entered.focus() # Place cursor into name Entry

#======================

# Start GUI

#======================

win.mainloop()