#############面向对象#####################
类：
In [1]: class MyClass(object): ##用class定义一个类
...: def pstar(self):
...: print '*'*20
...: In [2]: a = MyClass() ##创建一个实例对象，跟java相似 In [3]: a.pstar() ##通过实例对象，调用类里面的方法，这里的相当于把实例对象’a‘传递给self，作为pstar的参数了，所以不报错，self 是可以是任何东西，习惯写self
********************
In [4]: MyClass.pstar(a) #####
********************
#####################类的组合###########################
#!/usr/bin/env python
#-*- coding:utf-8 -*- class Info(object):
def __init__(self,ph,em,qq):
self.phone = ph
self.email = em
self.qq = qq
def get_phone(self):
return self.phone
def update_phone(self,newph):
self.phone = newph
class AddrBook():
def __init__(self,nm,ph,em,qq):
self.name = nm
self.info = Info(ph,em,qq)
if __name__ == '__main__':
bob = AddrBook("Bob Green",'','[email protected]','')
print bob.info.get_phone()
效果：
C:\Python27\python2.exe D:/pycharm/pa/addbook2.py
15980113980
Bob Green
####################类的继承###################
#!/usr/bin/env python
#-*- coding:utf-8 -*- class AddBook(object):
def __init__(self,nm,ph):
self.name = nm
self.phone = ph
def get_name(self):
return self.name
def get_phone(self):
return self.phone
class Add(AddBook):
pass
if __name__ == '__main__':
bob = Add('Bob Green','')
print bob.get_phone()
print bob.get_name()
效果：
C:\Python27\python2.exe D:/pycharm/pa/addbook.py
15980113990
Bob Green
#!/usr/bin/env python
#-*- coding:utf-8 -*- class AddBook(object):
def __init__(self,nm,ph):
self.name = nm
self.phone = ph
def get_name(self):
return self.name
def get_phone(self):
return self.phone
class Add(AddBook):
def __init__(self,nm,ph,id):
self.id = id
AddBook.__init__(self,nm,ph) #####继承 if __name__ == '__main__':
bob = Add('Bob Green','','')
print bob.get_phone()
print bob.get_name()
print bob.id
效果：
C:\Python27\python2.exe D:/pycharm/pa/addbook.py
15980113990
Bob Green
350823199900616671
额外：
##########__str__##############
#!/usr/bin/env python
#-*- coding:utf-8 -*- class Book():
def __init__(self,tt,bb):
self.tt = tt
self.bb = bb
def __str__(self):
return self.tt if __name__ == '__main__':
playbook = Book('fush','hua')
print playbook ###因为类中定义了__str__方法，直接通过实例对象返回值
结果：
C:\Python27\python2.exe D:/pycharm/pa/book.py
fush
############__call__################
#!/usr/bin/env python
#-*- coding:utf-8 -*- class Book():
def __init__(self,tt,bb):
self.tt = tt
self.bb = bb
def __str__(self):
return self.tt
def __call__(self):
print '%s %s' % (self.tt,self.bb) if __name__ == '__main__':
playbook = Book('fush','hua')
print playbook #因为类中定义了__str__方法，此处打印出的是__str__的返回值
playbook() #调用playbook就是执行__call__方法中的代码
今日最后：
In [8]: import ftplib In [9]: ftplib.__file__
Out[9]: '/usr/lib64/python2.6/ftplib.pyc'
[root@master ~]# vim /usr/lib64/python2.6/ftplib.py