复制代码 代码如下:

Python 3.3.4 (v3.3.4:7ff62415e426, Feb 10 2014, 18:13:51) [MSC v.1600 64 bit (AMD64)] on win32

Type "copyright", "credits" or "license()" for more information.

>>> 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

复制代码 代码如下:

movies=["the holy grail",1975,"terry jone & terry gilliam",91,

["graham chapman",

["michael palin","john cleese","terry gilliam",

"eric idle","terry jones"]]]

def print_lol(the_list):#定义一种函数

for each_item in the_list:#for in循环迭代处理列表，从列表起始位置到末尾

if isinstance(each_item,list):#isinstance()检测each_item里每一项

#是不是list类型

print_lol(each_item)#如果是，调用函数print_lol

else:print(each_item)#如果不是，输出这一项

print_lol(movies)#在movies列表中调用函数

"""

之前if else语句不对齐导致报错

"""