python装饰器

装饰器：https://www.zhihu.com/question/26930016 装饰器：https://www.zhihu.com/question/26930016 有位知友讲解的很详细很清楚。 有位知友讲解的很清楚，容易理解。 from t @gen.coroutine def outer_coroutine(): before = time.time() coroutines = [get_url(url) for url in [ 'URL1', 'URL2', 'URL3']] result = yield coroutines after = time.time() print(result) print( 'total time: {} seconds'.format(after - before)) if __name__ == '__main__': IOLoop.current().run_sync(outer_coroutine)