python-基础入门-5(模块、类和对象)

模块

模块用import来调用，例如

from sys import argv

调用sys中argv模块

在模块里有多个def的函数

import调用全部或其中一个

类和对象

下面定义了一个类

1 class song(object):
2
3     def __init__(self, lyrics):
4         self.lyrics = lyrics
5
6     def sing_me_a_song(self):
7         for line in self.lyrics:
8             print line

类好比一个蓝图，一个骨架，填充不同的东西， 出来的就是不同的物品

__init__处接受传递的参数，lyrics来接受，传递给self.lyrics

sing_me_a_song() 对传入的参数进行处理

例：

 1 class song(object):
 2
 3     def __init__(self, lyrics):
 4         self.lyrics = lyrics
 5
 6     def sing_me_a_song(self):
 7         for line in self.lyrics:
 8             print line
 9
10 happy_bday = song(["happy birthday to you",
11                    "i don't want to get sused",
12                    "so i'll stop right here"])
13 happy_bday.sing_me_a_song() 

运行结果