python列表操作使用示例分享

Python 3.3.4 (v3.3.4:7ff62415e426, Feb 10 2014, 18:13:51) [MSC v.1600 64 bit (AMD64)] on win32
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>>> cast=["cleese","palin","jones","idle"]
>>> print(cast)
['cleese', 'palin', 'jones', 'idle']
>>> print(len(cast))#显示数据项数量
4
>>> print(cast[1])#显示列表中第2个数据项的值
palin
>>> cast.append("gilliam")#在列表末尾添加一个数据项
>>> print(cast)
['cleese', 'palin', 'jones', 'idle', 'gilliam']
>>> cast.pop()#删除列表末尾的数据项
'gilliam'
>>> print(cast)
['cleese', 'palin', 'jones', 'idle']
>>> cast.extend(["gilliam","chapman"])#在列表末尾增加一个数据项集合
>>> print(cast)
['cleese', 'palin', 'jones', 'idle', 'gilliam', 'chapman']
>>> cast.remove("chapman")#删除指定的数据项
>>> print(cast)
['cleese', 'palin', 'jones', 'idle', 'gilliam']
>>> cast.insert(0,"chapman")#在指定的位置增加数据项
>>> print(cast)
['chapman', 'cleese', 'palin', 'jones', 'idle', 'gilliam']
>>>

下面是讲定义一个def函数，isinstance()函数，for in，if else等的运用以及逻辑