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This article mainly introduces the python tkinter library how to use the relevant knowledge, the content is detailed and easy to understand, the operation is simple and fast, has a certain reference value, I believe that everyone after reading this python tkinter library how to use the article will have a harvest, let's take a look.

What is the tkinter Library?

The tkinter library is a library that comes with python for graphical page programming. With tkinter, developers can quickly build a simple graphical window application. As a GUI library, the function of tkinter is quite complete. And it is simple, flexible and stable, so it is a good tool for beginners to learn and develop GUI for small projects.

The IDLE that comes with python installation is implemented using tkinter.

What are the tools of graphical programming and what are their advantages and disadvantages?

There are three graphical programming tools under python: pyqt,tkinter and wxpython. Their characteristics are as follows:

Tkinterpyqtwxpython is open source, free, and commercially available in some cases (if the project is not open source) requires a commercial license to open source Free and easy to understand, understand all the details of pyqt requires a lot of time, less detail than pyqt, but also a lot of well-designed ui and modern appearance also have better ui and appearance without advanced widgets, there are many advanced widgets, there are many advanced widgets, there are no design tools, there is a special qt design as a design tool, there is wxFormbuilder as a design tool, there is no need to install a specific library, a specific library needs to be installed is very small. The more stable library is larger, the more complex library is larger, but it is not as large (and complex) as pyqt. It is less difficult to learn. If you have studied qt, you will learn pyqt quickly.

As you can see, each GUI framework has its own advantages and disadvantages. Tkinter is extremely simple, while pyqt is better at details. Wxpython exists as a compromise between the two. However, as a beginner who wants to get started with GUI programming, tkinter is more suitable.

Tkinter gets started quickly.

Needless to say, go straight to the code (the following code lists the use of some simple tkinter components, with comments):

From tkinter import * from tkinter import messageboxwindow = Tk () # create a Windows window window.title ("First Window") # name the title of this window window.geometry ("350x200") # set the window size to 350x220lbl = Label (window, text= "Hello") # define a tag component (label 1) whose value is hellolbl.grid (column=0, row=1) # use grid to position label 1 to 0 Position 1 txt = Entry (window, width=10) # defines a text input box whose width is 10txt.grid (column=0, row=0) # using grid Position the input box to def clicked (): # trigger the method res = "Welcome to" + txt.get () when the button is clicked # use the get method to get the value of the input component lbl.configure (text=res) # use the configure method to set the text value of label 1 (that is, the value he wants to show) messagebox.showinfo ("programming learning is good", "it has to be W3Cschool!") Btn = Button (window, text= "Click me!!" , command=clicked) # defines a button component whose value is click me! At the same time, define the click trigger command as clicked# when the button is clicked, trigger the clicked method btn.grid (column=1, row=0) # use grid to locate the button to the position of window.mainloop () # using the mainloop function, you can make the window wait for the user to interact with it until we close it

It is worth mentioning that the positioning of tkinter is not only grid (grid layout), but also place (absolute layout) and pack (relative layout), which reminds the editor of HTML and CSS. Friends with front-end development experience understand that tkinter should be faster.

This is the end of the article on "how to use python's tkinter Library". Thank you for reading! I believe everyone has a certain understanding of the knowledge of "how to use python's tkinter library". If you want to learn more, you are welcome to follow the industry information channel.

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