Update crr.py

import语句重复了
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shaoupipi 2018-05-13 10:52:59 +08:00 committed by GitHub
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commit c2c7d2f171
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@ -26,8 +26,6 @@ theta当t变动1天时price的变动国内交易日每年240天
vega当v涨跌1个点时price的变动如从16%涨到17%
'''
from __future__ import division
import numpy as np
from math import (isnan, exp, sqrt, pow)