尝试运行以下代码:
class Test(object):
def func_accepting_args(self,prop,*args):
msg = "%s getter/setter got called with args %s" % (prop,args)
print msg #this is prented
return msg #Why is None returned?
def __getattr__(self,name):
if name.startswith("get_") or name.startswith("set_"):
prop = name[4:]
def return_method(*args):
self.func_accepting_args(prop,*args)
return return_method
else:
raise AttributeError, name
x = Test()
x.get_prop(50) #will return None, why?!, I was hoping it would return msg from func_accepting_args
有没有人能解释为什么没有人回来?在
因为return_method()不返回值。它只是从底部掉下来,所以你什么也得不到。在
return_method()
不返回任何内容。它应该返回包装的func_accepting_args()
的结果:相关问题 更多 >
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