>>462
そうか？俺のとこではかなり違うけど。

#### python 0.01秒 ####

import time
t1 = time.time()
s = ""
for i in xrange(50000):
    s += "a"
t2 = time.time()
print t2 - t1

#### ruby 17.346秒 #####

t1 = Time.now
s = ""
50000.times do
  s += "a"
end
t2 = Time.now
p t2 - t1