キツツキ、python講座、ソース_part2
1289 ワード
キツツキ、python講座、ソース_part2
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#******** some class egs. ***********
# eg1.
class c1:
def __init__(self):
self.message = 'init'
t1 = c1()
print "t1.message = ", t1.message
def __init__(self,message):
self.message = message
c1.__init__ = __init__
t2 = c1('hello')
print t2.message
# eg2.
class c2(c1):
def __del__(self):
print 'del c2 instance', self.message
def a():
ls = c2('hello')
a()
# eg3.
class c3:
def __call__(self):
print self.message
t4 = c1('hello')
c1.__bases__ += (c3,)
t4()
# eg4.
class c4:
def __call__(self):
self.__class__ = c5
print 'c4'
class c5:
def __call__(self):
self.__class__ = c4
print 'c5'
t4 = c4()
t4()
#
if __name__ == '__main__':
print __name__
#
print "__builtins__ = ", __builtins__