keakon的涂鸦馆

import time

class A():

  def f(self, n):
    return n

a = A()

t1 = 0
f = a.f
for j in xrange(10):
  sum = 0
  t = time.time()
  for i in xrange(1000000):
    sum += f(i)
  t1 += time.time() - t

t2 = 0
for j in xrange(10):
  sum = 0
  t = time.time()
  for i in xrange(1000000):
    sum += a.f(i)
  t2 += time.time() - t

print t1 /10
print t2 /10
print (t2 - t1) / t2 * 100, '%'

0.85
1.00780000687
15.6578691994 %