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This article mainly explains "constant example Analysis of python". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Let's let the editor take you to learn the constant example Analysis of python.

About constants, we have talked about naming conventions before. Constant names are all capitalized and linked by underscores, such as:

HEIGHT = 300WINDOW_HEIGHT = 300

Note that constants are a common rule of python programmers in python. In essence, the python interpreter does not limit the modification of constants.

To add here, the constant is usually defined as global, which is used to hold the value generated according to the runtime environment, which will never change after it is generated, and is logically understood as read-only.

For example:

Global WINDOW_WIDTH, WINDOW_HEIGHT # declare two global variables WINDOW_WIDTH, WINDOW_HEIGHT WINDOW_WIDTH, WINDOW_HEIGHT = root.maxsize () # this global variable is used to save the window size

In GUI programming, the resolution of different computer monitors must be taken into account. In order to obtain the best display effect, the most suitable font size, component size and display coordinates must be calculated according to the environment in which the program is running. This series of values need to be calculated according to the display resolution, and can not be set a fixed value in advance.

At this point, I believe you have a deeper understanding of the "constant example analysis of python". You might as well do it in practice. Here is the website, more related content can enter the relevant channels to inquire, follow us, continue to learn!

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