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| #encoding:utf-8
'''example 1
class test:
def __init__(self,year,**arg):
self.year = year
self.args = arg
def kaka(self):
if isinstance(self.year,str):
print 'input\'s year is a string! Error'
elif isinstance(self.year,int):
a = self.year%4
print a
else:
print 'Error!'
def deal_arg(self):
# for v in self.args:
# print '\n====================\n',v
for k in self.args:
print str(k)+'\tvalue is '+str(self.args[k])
print self.args
a = test(2014,a=123,b=321)
a.kaka()
a.deal_arg()
'''
'''example 2
class test:
'这是一个测试的基类'
def __init__(self,test):
self.test = test
'这是一个测试的基类'
print 'test.__doc__:',test.__doc__
print 'test.__name__:',test.__name__
print 'test.__module__:',test.__main__
print 'test.__bases__:',test.__bases__
print 'test.__dict__:',test.__dict__
'''
'''example 3 Class inheritance and method partial rewriting
class parent:
def __init__(self):
print '这是一个父类'
def ParentsMethond(self):
print '这是一个父类方法'
def Parenttest(self,arg):
self.arg = 'This is a test!'
print '父类的self变量: %s' %self.arg
parent.arg = arg
print '父类的变量: %s' %parent.arg
class child(parent):
"""docstring for child"""
def __init__(self):
print '这是一个子类'
def ChildMethod(self):
print '调用子类方法 child method'
def ParentsMethond(self):
print '父类方法重写！！！！！！！！！！！！！！！！！！！！'
b= parent()
c = child()
c.ChildMethod()
print '*'*10
b.ParentsMethond()
c.ParentsMethond()
print '*'*10
c.Parenttest(3899)
'''
'''example 4 Operator overloading
class test:
def __init__(self,a,b):
self.a = a
self.b = b
def __str__(self):
return 'Vector (%d,%d)' % (self.a,self.b)
def __add__(self,other):
return test(self.a+other.a,self.b+other.b)
v1 = test(21,22)
v2 = test(2,3)
print v1 + v2
'''
'''#example 5 private class
class JustCounter(object):
"""docstring for JustCounter"""
__secretCount = 0 #私有变量
publicCount = 0 #公开变量
def count(self):
self.__secretCount +=1
self.publicCount +=1
print self.__secretCount
counter = JustCounter()
counter.count()
counter.count()
counter.count()
counter.count()
counter.count()
print counter.publicCount
print counter.__secretCount #报错，实例不能访问私有变量
print counter._JustCounter__secreCount
'''
|
