import time def cal_time(fn): print('我是外部函数，我被调用了') print('fn = {}'.format(fn)) def inner(x,*args,**kwargs): start = time.time() s = fn(x) end = time.time() # print('代码运行耗时{}秒'.format(end - start)) return s,end - start return inner @cal_time def demo(n): x = 0 for i in range(1, n): x = i return xm = demo(10000000,'good',y = 'hello') print('m的值是',m)
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