How to use the default value of python parameter

This article mainly introduces the relevant knowledge of "how to use the default value of python parameters". The editor shows you the operation process through an actual case. The operation method is simple, fast and practical. I hope this article "how to use the default value of python parameters" can help you solve the problem.

Description

1. The default value of the parameter, that is, the default value is set for the parameter, and then the parameter is not entered when the function is called. Python will automatically populate the parameter with the default value.

2. If the parameter of the default value is still entered, the default value will be overwritten.

When defining a function, the parameter default value is specified with the parameter = value.

Def function (parameter 1, parameter 2 = default): pass

Example

The overspeed_rate function, max and min are usually fixed, and you can use a common value as the default value.

Def overspeed_rate (current, max=120, min=90): if current > max: return (current-max) / max elif current < min: return (current-min) / min else: return 0 on "how to use the default values of python parameters" is introduced here, thank you for reading. If you want to know more about the industry, you can follow the industry information channel. The editor will update different knowledge points for you every day.