def hello(self);Demo(object);
method(*args)
print :
# :
return ，如上面代码中的hello函数加上@inject_check装饰器;my_method
############################ before" def
my_method(*args);
class .hello()
就是在函数上加个包装; "
d hello(self); def after":
# Demo()
d; def @inject_check
，等价于将函数hello重新赋值;
#class :
hello=inject_check(hello)
##########################
hello"
inject_check(method);print print " Demo(object); = :
" :
"
# print hello"