Tkinter Spinbox

Python - Tkinter Spinbox: Spinbox小部件是一个标准的Tkinter的Entry小窗口部件的变体，它可以用来选择从一个固定的值.

 

Spinbox小部件是一个标准的Tkinter的Entry小窗口部件的变体，它可以用来选择从一个固定的值.

语法:

这里是一个简单的语法来创建这个widget:

w = Spinbox( master, option, ... )

参数:

• master: 这代表了父窗口.

• options: 下面是这个小工具最常用的选项列表。这些选项可以作为键 - 值对以逗号分隔.

Option	Description
activebackground	The color of the slider and arrowheads when the mouse is over them.
bg	The color of the slider and arrowheads when the mouse is not over them.
bd	The width of the 3-d borders around the entire perimeter of the trough, and also the width of the 3-d effects on the arrowheads and slider. Default is no border around the trough, and a 2-pixel border around the arrowheads and slider.
command	A procedure to be called whenever the scrollbar is moved.
cursor	The cursor that appears when the mouse is over the scrollbar.
disabledbackground	The background color to use when the widget is disabled.
disabledforeground	The text color to use when the widget is disabled.
fg	Text color.
font	The font to use in this widget.
format	Format string. No default value.
from_	The minimum value. Used together with to to limit the spinbox range.
justify	Default is LEFT
relief	Default is SUNKEN.
repeatdelay	Together with repeatinterval, this option controls button auto-repeat. Both values are given in milliseconds.
repeatinterval	See repeatdelay.
state	One of NORMAL, DISABLED, or "readonly". Default is NORMAL.
textvariable	No default value.
to	See from.
validate	Validation mode. Default is NONE.
validatecommand	Validation callback. No default value.
values	A tuple containing valid values for this widget. Overrides from/to/increment.
vcmd	Same as validatecommand.
width	Widget width, in character units. Default is 20.
wrap	If true, the up and down buttons will wrap around.
xscrollcommand	Used to connect a spinbox field to a horizontal scrollbar. This option should be set to the set method of the corresponding scrollbar.

方法:

spinbox对象有这些方法:

Methods & Description

delete(startindex [,endindex])
This method deletes a specific character or a range of text.

get(startindex [,endindex])
This method returns a specific character or a range of text.

identify(x, y)
Identifies the widget element at the given location.

index(index)
Returns the absolute value of an index based on the given index.

insert(index [,string]...)
This method inserts strings at the specified index location.

invoke(element)
Invokes a spinbox button.

例子:

自行尝试下面的例子:

from Tkinter import *

master = Tk()

w = Spinbox(master, from_=0, to=10)
w.pack()

mainloop()

这将产生以下结果: