How to find the factorial of the input number in Python

Python method to find the factorial of the input number: first define a [factorial()] function and enter the factorial algorithm; then call the [factorial()] function to calculate the factorial of 5; finally use [print( )] function outputs the calculated result.

The operating environment of this tutorial: Windows 7 system, python version 3.9, DELL G3 computer.

Python method to find the factorial of the input number:

1. Create a new factorial .py to find the factorial of any number, as shown in the figure:

2. Chinese coding statement annotation: # coding=gbk, as shown in the picture:

3. Define a factorial() function. This function is used to calculate the factorial of the incoming parameters, as shown in the figure:

4. Enter the factorial Algorithm, the code is as shown in the figure:

5. Call the factorial() function to calculate the factorial of 5, as shown in the figure:

6. Use the print() function to output the calculated results, as shown in the figure:

7. Run the script and display Get the calculation results, as shown in the figure:

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