Python Basic notes-functions

Functions are well-organized, reusable pieces of code that are used to implement a single, or associated function.

The benefits are:
One can extract the relatively independent function module in the program, and reduce the writing of reread code;
Second, these functional modules can be reused in the future

Define a function

1. You can define a function that you want to function, and here are the simple rules:

   • The function code block begins with a def keyword followed by the function identifier name and parentheses ().

   • Any incoming parameters and arguments must be placed in the middle of the parentheses, and the parentheses can be used to define the parameters.

   • The function content starts with a colon and is indented.

Python Basic notes-functions