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📜  Python Tkinter标签

📅  最后修改于: 2020-10-27 01:50:59             🧑  作者: Mango

Python Tkinter标签

标签用于指定我们可以放置文本或图像的容器框。该小部件用于向用户提供有关Python应用程序中使用的其他小部件的消息。

可以指定各种选项来配置标签中显示的文本或部分文本。

下面给出了使用Label的语法。

句法

w = Label (master, options)

下面列出了可能的选项。

SN Option Description
1 anchor It specifies the exact position of the text within the size provided to the widget. The default value is CENTER, which is used to center the text within the specified space.
2 bg The background color displayed behind the widget.
3 bitmap It is used to set the bitmap to the graphical object specified so that, the label can represent the graphics instead of text.
4 bd It represents the width of the border. The default is 2 pixels.
5 cursor The mouse pointer will be changed to the type of the cursor specified, i.e., arrow, dot, etc.
6 font The font type of the text written inside the widget.
7 fg The foreground color of the text written inside the widget.
8 height The height of the widget.
9 image The image that is to be shown as the label.
10 justify It is used to represent the orientation of the text if the text contains multiple lines. It can be set to LEFT for left justification, RIGHT for right justification, and CENTER for center justification.
11 padx The horizontal padding of the text. The default value is 1.
12 pady The vertical padding of the text. The default value is 1.
13 relief The type of the border. The default value is FLAT.
14 text This is set to the string variable which may contain one or more line of text.
15 textvariable The text written inside the widget is set to the control variable StringVar so that it can be accessed and changed accordingly.
16 underline We can display a line under the specified letter of the text. Set this option to the number of the letter under which the line will be displayed.
17 width The width of the widget. It is specified as the number of characters.
18 wraplength Instead of having only one line as the label text, we can break it to the number of lines where each line has the number of characters specified to this option.

例子1

# !/usr/bin/python3

from tkinter import *

top = Tk()

top.geometry("400x250")

#creating label
uname = Label(top, text = "Username").place(x = 30,y = 50)

#creating label
password = Label(top, text = "Password").place(x = 30, y = 90)


sbmitbtn = Button(top, text = "Submit",activebackground = "pink", activeforeground = "blue").place(x = 30, y = 120)

e1 = Entry(top,width = 20).place(x = 100, y = 50)


e2 = Entry(top, width = 20).place(x = 100, y = 90)


top.mainloop()

输出：