[转]Tkinter教程之Button篇(2)

上一篇 / 下一篇  2011-06-30 11:22:39 / 个人分类:Python-Tkinter

Tkinter教程之Button篇(2)

'''5.指定Button的宽度与高度
width:    宽度
heigth:    高度
使用三种方式:
1.创建Button对象时,指定宽度与高度
2.使用属性width和height来指定宽度与高度
3.使用configure方法来指定宽度与高度
'''
from tkinter import *
root = Tk()
b1 = Button(root,text = '30X1',width = 30,height = 2)
b1.pack()

b2 = Button(root,text = '30X2')
b2['width'] = 30
b2['height'] = 3
b2.pack()

b3 = Button(root,text = '30X3')
b3.configure(width = 30,height = 3)
b3.pack()

root.mainloop()
# 上述的三种方法同样也适合其他的控件
'''6.设置Button文本在控件上的显示位置
anchor:
使用的值为:n(north),s(south),w(west),e(east)和ne,nw,se,sw,就是地图上的标识位置了,使用
width和height属性是为了显示各个属性的不同。
'''
from tkinter import *
root = Tk()

#简单就是美!
for a in ['n','s','e','w','ne','nw','se','sw']:
    Button(root,text = 'anchor',anchor = a,width = 30,height = 4).pack()
#如果看的不习惯,就使用下面的代码。
# Button(root,text = 'anchor',width = 30,height =4).pack()
# Button(root,text = 'anchor',anchor = 'center',width = 30,height =4).pack()
# Button(root,text = 'anchor',anchor = 'n',width = 30,height = 4).pack()
# Button(root,text = 'anchor',anchor = 's',width = 30,height = 4).pack()
# Button(root,text = 'anchor',anchor = 'e',width = 30,height = 4).pack()
# Button(root,text = 'anchor',anchor = 'w',width = 30,height = 4).pack()
# Button(root,text = 'anchor',anchor = 'ne',width = 30,height = 4).pack()
# Button(root,text = 'anchor',anchor = 'nw',width = 30,height = 4).pack()
# Button(root,text = 'anchor',anchor = 'se',width = 30,height = 4).pack()
# Button(root,text = 'anchor',anchor = 'sw',width = 30,height = 4).pack()

root.mainloop()
'''7.改变Button的前景色与背景色
fg:    前景色
bg:背景色
'''
from tkinter import *
root = Tk()
bfg = Button(root,text = 'change foreground',fg = 'red')
bfg.pack()

bbg = Button(root,text = 'change backgroud',bg = 'blue')
bbg.pack()

root.mainloop()

'''8.设置Button的边框
bd(bordwidth):缺省为1或2个像素
'''
# 创建5个Button边框宽度依次为:0,2,4,6,8
from tkinter import *
root = Tk()
for b in [0,1,2,3,4]:
    Button(root,text = string(b),bd = b).pack()
root.mainloop()   

'''9.设置Button的风格
relief/raised/sunken/groove/ridge
'''
from tkinter import *
root = Tk()
for r in ['raised','sunken','groove','ridge']:
    Button(root,text = r,relief = r,width = 30).pack()
root.mainloop()

'''10.设置Button状态
normal/active/disabled
'''
from tkinter import *
root = Tk()
def statePrint():
    print ('state')
for r in ['normal','active','disabled']:
    Button(root,text = r,state = r,width = 30,command = statePrint).pack()
root.mainloop()
#例子中将三个Button在回调函数都设置为statePrint,运行程序只有normal和active激活了回调函数,而disable按钮则没有,对于暂时不
#需要按钮起作用时,可以将它的state设置为disabled属性

'''11.绑定Button与变量(未试过)
设置Button在textvariable属性
'''
from Tkinter import *
root = Tk()
def changeText():
    if b['text'] == 'text':
        v.set('change')
        print 'change'
    else:
        v.set('text')
        print 'text'
v = StringVar()
b = Button(root,textvariable = v,command = changeText)
v.set('text')
b.pack()
root.mainloop()

'''
将变量v与Button绑定,当v值变化时,Button显示的文本也随之变化
'''

#author:     jcodeer
#blog:    jcodeer.cublog.cn
#email:   jcodeer@126.com

本文来自CSDN博客,转载请标明出处:http://blog.csdn.net/jcodeer/archive/2007/10/04/1811300.aspx


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