定制数据对象

1、创建字典

Python 3.3.0 (v3.3.0:bd8afb90ebf2, Sep 29 2012, 10:55:48) [MSC v.1600 32 bit (Intel)] on win32
Type "copyright", "credits" or "license()" for more information.
>>> cheese={}

>>> type(cheese)
<class 'dict'>

>>> cheese['Name']='john'
>>> cheese['Position']='manager'

>>> cheese
{'Position': 'manager', 'Name': 'john'}

>>> cheese['Age']='25'
>>> cheese
{'Position': 'manager', 'Age': '25', 'Name': 'john'}
>>> 

2、将代码与数据打包在类中

创建类

 

class Athlete

def  _init_(self):

#the code to initialize a "Athlete" object

创建对象

 a=Athlete();--------------Athlete._init_(a)

每个方法的第一个参数为调用对象实例

class Athlete

def  _init_(self,value=0):

self.thing=value

def  howbig(self):

return(len(self.thing))

• 无返回值啊 
• 第一个参数为调用对象