Head First Python Chapter one initial python

1. Install the Python interpreter and IDE, choose Pycharm here, with the environment

2. Examples of the list:

Python has no array, only a list of meta combinations

List examples are as follows

movies=["Titanic", "The Big Bang Theory"]
Print (Movies[0])

List supports operations such as Insert,pop,remove,append

Lists can contain mixed types of data

3.for Each statement is combined with a list

For Each_movie in movies:
    Print (Each_movie)

List processing Code python programmer called "group"

4. List nesting

List allows nesting, more flexible than multidimensional arrays

Supports isinstance detection type, such as Isinstance (***,list) to detect if an identifier is a list

Processing multi-level list nesting (removing content from all lists) requires multiple layers of judgment and a for statement-resolution: Recursive?

5.python function

def function name (parameter):

function body

Using recursion to solve a list of multiple nesting problems, recursive default depth of 100, can be changed

Head First Python Chapter one initial python