python学习之GUI（Tkinter
button按钮的生成：
import Tkinter as tk
window=tk.Tk()
def buttonClick():
print "Beep!"
button=tk.Button(window,text="Click me!",command=buttonClick)
button.pack()
window.mainloop()同理将方法改为改变按钮上的文字
import Tkinter as tk
window=tk.Tk()
def buttonClick():
# print "Beep!"
button.config(text="Clicked!")
button=tk.Button(window,text="Click me!",command=buttonClick)
button.pack()
window.mainloop()点击按钮的计数
import Tkinter as tk
window=tk.Tk()
count=0
def buttonCount():
global count
count+=1
button.config(text=str(count))
button=tk.Button(window,text="count",command=buttonCount)
button.pack()
window.mainloop()创建文本框，里面有一个按钮和文本框，通过获取文本框的内容，每点击一次按钮，都复制文本框中的内容并一起显示在文本框中。
import Tkinter as tk
window=tk.Tk()
def changeStr():
stringCopy=entry.get()
entry.insert(0,stringCopy)
entry=tk.Entry(window)
button=tk.Button(window,text="StrChange",command=changeStr)
entry.pack()
button.pack()
window.mainloop()其中，entry.insert中参数第一个为插入的位置。
将文本框中的内容反面显示于文本框中
import Tkinter as tk
window=tk.Tk()
def changeStr():
stringCopy=entry.get()
stringCopy=stringCopy[::-1]
entry.delete(0,tk.END)
entry.insert(0,stringCopy)
entry=tk.Entry(window)
button=tk.Button(window,text="StrChange",command=changeStr)
entry.pack()
button.pack()
window.mainloop()添加密码框，用于输入密码的文本框常常在输入密码时不会显示密码，而是在每个字符的位置显示星号（*),使用方式：在添加文本框时，添加一个额外的具名自变量，这样文本框就变成了一个密码框
在GUI中会有一个输入密码的框和一个提交密码的按钮。如果密码正确，底部会出现一个写有Correct的标签，负责它会写Incorrect。
import Tkinter as tk
window=tk.Tk()
def checkPassword():
password="Apple"
enterPass=passwordEntry.get()
if enterPass == password:
confirmLabel.config(text="Correct")
else:
confirmLabel.config(text="Incorrect")
passwordLabel=tk.Label(window,text="Password")
passwordEntry=tk.Entry(window,show="*")
button=tk.Button(window,text="Enter",command=checkPassword)
confirmLabel=tk.Label(window)
passwordLabel.pack()
passwordEntry.pack()
button.pack()
confirmLabel.pack()
window.mainloop()构造句子生成器：列表与随机函数的配合使用
import Tkinter as tk
import random
window=tk.Tk()
def randomNoun():
nouns=["cats","hippos","cakes"]
noun=random.choice(nouns)
return noun
def randomVerb():
verbs=["eats","likes","hates","has"]
verb=random.choice(verbs)
return verb
def buttonClick():
name=nameEntry.get()
verb=randomVerb()
noun=randomNoun()
sentence=name+" "+verb+" "+noun
result.delete(0,tk.END)
result.insert(0,sentence)
nameLabel=tk.Label(window,text="Name:")
nameEntry=tk.Entry(window)
button=tk.Button(window,text="Generate",command=buttonClick)
result=tk.Entry(window)
nameLabel.pack()
nameEntry.pack()
button.pack()
result.pack()
window.mainloop()猜数字游戏：生成一个1-10之间的随机数，看是否成功猜测，并计算游戏的胜利次数（标签显示）
import random
import Tkinter as tk
window=tk.Tk()
maxNo=10
score=0
rounds=0
def buttonClick():
global score
global rounds
try:
guess=int(guessBox.get())
if 0<guess<=maxNo:
result=random.randrange(1,maxNo+1)
if guess==result:
score=score+1
rounds+=1
else:
result="Entry not valid"
except:
result="Entry not valid"
resultLabel.config(text=result)
scoreLabel.config(text=str(score)+"/"+str(rounds))
guessBox.delete(0,tk.END)
guessLabel=tk.Label(window,text="Enter a number from 1 to"+str(maxNo))
guessBox=tk.Entry(window)
resultLabel=tk.Label(window)
scoreLabel=tk.Label(window)
button=tk.Button(window,text="guess",command=buttonClick)
guessLabel.pack()
guessBox.pack()
resultLabel.pack()
scoreLabel.pack()
button.pack()
window.mainloop()'''
'''import Tkinter as tk
window=tk.Tk()
slider=tk.Scale(window,from_=0,to=100)
slider.pack()
tk.mainloop()滚动条的创建与使用
import Tkinter as tk
window=tk.Tk()
slider=tk.Scale(window,from_=0,to=100)
slider.pack()
tk.mainloop()画布的创建
import Tkinter as tk
window=tk.Tk()
colour="#FF0000"
canvas=tk.Canvas(window,height=300,width=300,bg=colour)
canvas.pack()
window.mainloop()颜色选择器：画布与滚动条的配合使用
注：通过三个滚动条的选择从而决定三原色红，绿，蓝三个颜色的占用，从而组成喜欢的颜色。而在实际画画中，所有的颜色由红，黄，蓝混合组成。
import Tkinter as tk
window=tk.Tk()
def sliderUpdate(source):
red=redSlider.get()
green=greenSlider.get()
blue=blueSlider.get()
colour="#%02x%02x%02x"%(red,green,blue)
canvas.config(bg=colour)
redSlider=tk.Scale(window,from_=0,to=255,command=sliderUpdate)
greenSlider=tk.Scale(window,from_=0,to=255,command=sliderUpdate)
blueSlider=tk.Scale(window,from_=0,to=255,command=sliderUpdate)
canvas=tk.Canvas(window,width=200,height=200)
redSlider.grid(row=1,column=1)
greenSlider.grid(row=1,column=2)
blueSlider.grid(row=1,column=3)
canvas.grid(row=2,column=1,columnspan=3)
tk.mainloop()改进：添加一个文本框用来显示三原色的选择（16进制）
import Tkinter as tk
window=tk.Tk()
def sliderUpdate(source):
red=redSlider.get()
green=greenSlider.get()
blue=blueSlider.get()
colour="#%02x%02x%02x"%(red,green,blue)
canvas.config(bg=colour)
hexText.delete(0,tk.END)
hexText.insert(0,colour)
redSlider=tk.Scale(window,from_=0,to=255,command=sliderUpdate)
greenSlider=tk.Scale(window,from_=0,to=255,command=sliderUpdate)
blueSlider=tk.Scale(window,from_=0,to=255,command=sliderUpdate)
canvas=tk.Canvas(window,width=200,height=200)
hexText=tk.Entry(window)
redSlider.grid(row=1,column=1)
greenSlider.grid(row=1,column=2)
blueSlider.grid(row=1,column=3)
canvas.grid(row=2,column=1,columnspan=3)
hexText.grid(row=3,column=1,columnspan=3)
tk.mainloop()一个计点击速度的游戏：记录点击的次数，直到达到目地数，输出所花费时间
import Tkinter as tk
import time
window=tk.Tk()
clicks=0
start=0
goal=10
def buttonClick():
global clicks
global start
if clicks==0:
start=time.time()
clicks=clicks+1
elif clicks+1>=goal:
score=time.time()-start
label.config(text="Time: "+str(score))
clicks=0
else:
clicks=clicks+1
slider.set(clicks)
button=tk.Button(window,text="Click me",command=buttonClick)
slider=tk.Scale(window,from_=0,to=goal)
label=tk.Label(window)
button.pack()
slider.pack()
label.pack()
window.mainloop()本文参与 腾讯云自媒体分享计划，分享自作者个人站点/博客。
原始发表：2019-09-21 ，如有侵权请联系 cloudcommunity@tencent.com 删除
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