class式的 Decorator
decorator的class方式
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class myDecorator(object):
def __init__(self, fn):
print "inside myDecorator.__init__()"
self.fn = fn
def __call__(self):
self.fn()
print "inside myDecorator.__call__()"
@myDecoratordef aFunction():
print "inside aFunction()"
print "Finished decorating aFunction()"
aFunction()# 输出：# inside myDecorator.__init__()# Finished decorating aFunction()# inside aFunction()# inside myDecorator.__call__() |