List of Python []

A list is a mutable type of data structure that is defined using the brackets.
strings are defined in quotation marks, and tuples are defined with parentheses, and the list is defined using brackets.

In [27]: list1=[]                  #创建一个空的列表In [28]: type(list1)Out[28]: listIn [29]: list2=list()             #也可以通过list函数创建一个空的列表In [30]: list2Out[30]: []In [31]: type(list2)Out[31]: list

Append: Adding elements to the list

In [33]: list2.append("a")    In [34]: list2Out[34]: [‘a‘]In [35]: list2.append("b")In [36]: list2Out[36]: [‘a‘, ‘b‘]

Delete

In [39]: list2Out[39]: [‘a‘, ‘b‘, ‘cdewd‘, ‘qewq‘]In [40]: del list2[-1]                  #删除列表中最后一个元素In [41]: list2        Out[41]: [‘a‘, ‘b‘, ‘cdewd‘]In [42]: list2.remove(list2[2])   #删除列表中下标为2的元素In [43]: list2Out[43]: [‘a‘, ‘b‘]

List of Python []