import time, functools

def metric(fn): @functools.wraps(fn) def wrapper(args,**kw): print('%s executed in %s ms' % (fn.name, 10.24)) return fn(args,**kw) return wrapper

@metric

def fast(x, y): time.sleep(0.0012) return x + y;

@metric

def slow(x, y, z): time.sleep(0.1234) return x y z;

f = fast(11, 22) s = slow(11, 22, 33) if f != 33: print('测试失败!') elif s != 7986: print('测试失败!') else: print('测试成功')