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This article focuses on "the use of lambda expressions in Python". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Let the editor take you to learn "the use of lambda expressions in Python".

Q: tell me about the lambda expression in Python?

A: in Python, lambda expressions are also called anonymous functions, that is, functions do not have a specific name. Lambda expression is a special form of defining function in Python, which can be used to define an anonymous function. Unlike other languages, the function body of Python's lambda expression can only have a single statement, that is, a return value expression statement.

Lambda expressions are usually used when you need a function but do not want to bother to name a function. The content of the anonymous function represented by lambda should be very simple, and if it is complex, redefine a function. Lambda expressions allow you to create a function and pass it in one line of code.

The advantages and disadvantages of lambda expression in Python: on the one hand, the Lambda function reduces the number of lines of code, convenient and concise. On the other hand, Lambda expressions have many limitations and cannot use complex logic.

Here is the simplest lambda expression to find the sum of two numbers:

Add = lambda x, y: x+ynum = add (1mai 2) print ("x =", num) # the result is: x+y=3

From the above code example, we can see that the syntax format of the lambda expression is: lambda [parameter_list]: the expression can get two main points of the lambda expression according to its syntax format: 1. The lambda expression must be defined using the lambda keyword. 2. After the lambda keyword, the left side of the colon is a list of parameters, with no parameters or multiple parameters. If there are multiple parameters, the parameters are separated by commas, and to the right of the colon is the return value of the lambda expression. At this point, I believe you have a deeper understanding of "the use of lambda expressions in 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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