A list of Python learning notes

1. Three ways to create a list

#数组和列表的区别, an array can hold only one data type, and the list may contain multiple

#创建一个普通列

#创建一个混合列表

#创建一个空列表

2, three ways to add elements like List append (), extend (), insert ()

#append () and extend () can only add elements after the list

#append () add only one element

#extend () to extend another list with one list

#insert () method two parameters, the first parameter represents the position in the list, and the second parameter inserts an element at the position of the first element

A list of Python learning notes