我如果想同时求两个数的阶乘，应该如何修改代码呢？

import time

def performance(unit):

def decorate (f):

def warpper(*args, **kw):

timestart = time.time()

r = f(*args, **kw)

timeend = time.time()

if unit == 'ms':

t=(timeend - timestart)*1000

else:

t = timeend - timestart

print 'call %s() in %f %s' % (f.__name__, t, unit)

return r

return warpper

return decorate

@performance('ms')

def factorial(n,m):

return reduce(lambda x,y: x*y, for x in range(1, n+1), for y in range(1, m-1))

print factorial(10,9)

慕九州2485307

2018-12-11

源自：python进阶 2-13

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十三月独处
2018-12-13

import time

def performance(unit):
    def decorate (f):
        def warpper(*args, **kw):
            timestart = time.time()
            r = f(*args, **kw)
            timeend = time.time()

            if unit == 'ms':
                t=(timeend - timestart)*1000
            else:
                t = timeend - timestart
            print 'call %s() in %f %s' % (f.__name__, t, unit)
            return r
        return warpper
    return decorate

@performance('ms')
def factorial(n,m):
return reduce(lambda x,y: x*y, range(1, n+1)),reduce (lambda x,y:x*y, range(1,m+1))
print factorial(10,9)