Python3 Tkinter-Button

1.绑定事件处理函数

from tkinter import *

def hello():
    print('Hello!')

root=Tk()
button=Button(root,text='click me!',command=hello)
button.pack()
root.mainloop()

2.按钮样式

from tkinter import *

def hello():
    print('Hello!')

root=Tk()
button1=Button(root,text='click me!',command=hello,relief=FLAT)
button1.pack()
button2=Button(root,text='click me!',command=hello,relief=GROOVE)
button2.pack()
button3=Button(root,text='click me!',command=hello,relief=RAISED)
button3.pack()
button4=Button(root,text='click me!',command=hello,relief=RIDGE)
button4.pack()
button5=Button(root,text='click me!',command=hello,relief=SOLID)
button5.pack()
button6=Button(root,text='click me!',command=hello,relief=SUNKEN)
button6.pack()
root.mainloop()

3.图像

button也有bitmap,compound

4.焦点

from tkinter import *

def hello():
    print('Hello!')

def b2(event):
    print(event,' is clicked.')

root=Tk()
button1=Button(root,text='click me!',command=hello)
button1.pack()
button2=Button(root,text='click me!')
button2.bind('<Return>',b2)
button2.pack()

button2.focus_set()
button1.focus_set()

root.mainloop()

5.宽高

b.configure=(width=30,heigth=100)

也可在定义的时候确定

6.Button文本在控件上显示的位置

from tkinter import *

def hello():
    print('Hello!')

root=Tk()
button1=Button(root,text='click me!',command=hello,anchor='ne',width=30,height=4)
button1.pack()

root.mainloop()

n(north),s(south),w(west),e(east),ne(north east),nw,se,sw

7.改变颜色

from tkinter import *

def hello():
    print('Hello!')

root=Tk()
button1=Button(root,text='click me!',command=hello,fg='red',bg='blue')
button1.pack()

root.mainloop()

8.边框

from tkinter import *

def hello():
    print('Hello!')

def b2(event):
    print(event,' is clicked.')

root=Tk()

for b in [0,1,2,3,4]:
    Button(root,text=str(b),bd=b).pack()

root.mainloop()

9.状态

from tkinter import *

def hello():
    print('Hello!')

def b2(event):
    print(event,' is clicked.')

root=Tk()

for r in ['norma','active','disabled']:
    Button(root,state=r,text=r).pack()

root.mainloop()

10.绑定变量

from tkinter import *

root=Tk()

def change():
    if b['text']=='text':
        v.set('change')
    else:
        v.set('text')

v=StringVar()
b=Button(root,textvariable=v,command=change)
v.set('text')
b.pack()

root.mainloop()