python 项目实战之装饰器

 import logging

 def use_logging(func):
     def writelog(*args, **kwargs):
         logging.warning("%s is running xxx" % func.__name__)
         return func(*args)

     return writelog

 def far():
     print("far....")

 @use_logging
 def bar():
     print("装饰器")

 if __name__ == '__main__':

     far = use_logging(far)
     far()
     bar()