Shulou(Shulou.com)06/02 Report--

This article introduces the knowledge of "what are the elegant ways to write Python?". In the operation of practical cases, many people will encounter such a dilemma. Next, let the editor lead you to learn how to deal with these situations. I hope you can read it carefully and be able to achieve something!

Assign values to multiple variables

Sometimes, there are multiple variables that need to be assigned, how do you assign them?

General methods:

The conventional method is to assign values to variables one by one.

Elegant approach:

Directly correspond to one by one assignment in order.

Sequence unpacking

You need to take out the elements in the list.

General methods:

In general, we know that specific elements can be obtained by subscript.

Elegant approach:

Give the corresponding variable to receive all elements.

Elegant your judgment sentence

We use a judgment statement to define an absolute value function.

General methods:

Elegant approach:

Interval judgment

Use a statement judged twice by and, and execute the statement only when the conditions are met.

General methods:

Elegant approach:

Use chain judgment.

Multiple values in accordance with the condition judgment

The case in which any one of the multiple values meets the condition is True.

General methods:

Elegant approach:

Use the keyword in to make your sentences more elegant.

Determine whether it is empty or not

Determine whether the element is empty or non-empty.

General methods:

Generally, we think of the len () method to determine the length of the element, and if it is greater than 0, it is not empty.

Elegant approach:

The execution condition after if can be abbreviated, as long as the condition is non-zero value, non-empty string, non-empty list, etc., it is judged to be True, otherwise it is False.

At least one of the multi-conditional content judgment is valid.

General methods:

Connect multiple conditions with or.

Elegant approach:

Use the any statement.

Multi-conditional content judgment is all valid.

General methods:

Use and connection conditions to determine.

Elegant approach:

Use the all method.

Ergodic sequence elements and element subscript

General methods:

Use for loops to iterate over elements and subscripts.

Elegant approach:

Use the enumerate function

Loop statement optimization

For example: generate [1x1magin 2x2meme 3x3meme4x4pyr5x5].

General methods:

This can be achieved by using a simple for loop.

Elegant approach:

Using list generation, one line of code is done.

Python, have you learned these elegant ways of writing? Try it yourself.

This is the end of the content of "what are the elegant ways to write Python". Thank you for your reading. If you want to know more about the industry, you can follow the website, the editor will output more high-quality practical articles for you!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.