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This article mainly explains "the method of setting the default value of the parameter of python function". Interested friends may wish to have a look. The method introduced in this paper is simple, fast and practical. Next let the editor to take you to learn the "python function parameter setting default value method" it!

When you write a function, you can specify a default value for each parameter.

1. Python will use the specified argument value when providing arguments to the parameter in the calling function, otherwise the default value of the parameter will be used.

2. When using default values, the formal parameters with no default values must be listed in the formal parameter list, and then the arguments with default values must be listed.

Example

> def greet_user (username): the parameters in parentheses here are formal parameters "display simple greetings" print ("Hello,"+ username.title () +"! ") > greet_user ('chenyu') Hello, Chenyu! > what are the advantages of Python? 1. It is easy to use. Compared with traditional languages such as Python, Java, Java, Python has less stringent requirements on code format.

2. Python is open source, everyone can see the source code, and it can be ported to many platforms.

3. Python is object-oriented, which can support both process-oriented programming and object-oriented programming.

4. Python is an interpretive language. Programs written by Python do not need to be compiled into binary code and can be run directly from the source code.

5. Python has powerful functions, has many modules, and can basically achieve all the common functions.

At this point, I believe you have a deeper understanding of the method of setting default values for python function parameters, so 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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