python 列表删除元素
python 删除元素的几种方式
方式一:使用del方法
python代码
>>> names=[‘alice’,’beth’,’cecil’,’dee-dee’,’earl’]
>>> names
[‘alice’, ‘beth’, ‘cecil’, ‘dee-dee’, ‘earl’]
>>> del names[2]
>>> names
[‘alice’, ‘beth’, ‘dee-dee’, ‘earl’]
>>>
python代码
>>> numbers=[‘a’, ‘b’, ‘c’, ‘d’]
>>> numbers
[‘a’, ‘b’, ‘c’, ‘d’]
>>> del numbers[1:3]
>>> numbers
[‘a’, ‘d’]
方式二:分片赋值
python代码
>>> numbers=[‘a’, ‘b’, ‘c’, ‘d’]
>>> numbers
[‘a’, ‘b’, ‘c’, ‘d’]
>>> numbers[1:3]=[]
>>> numbers
[‘a’, ‘d’]