運行時間裝飾器

1 def run_time(func):
2     def new_fun(*args,**kwargs):
3         t0 = time.time()
4         print('star time: %s' % (time.strftime('%x', time.localtime())))
5         back = func(*args, **kwargs)
6         print('end time: %s' % (time.strftime('%x', time.localtime())))
7         print('run time: %s' % (time.time() - t0))
8         return back
9     return new_fun