初学者，想问问这个代码哪里有问题？

def sta001(k,nyear,xd):
    d2=np.fv(k,nyear,-xd,-xd);
    d2=round(d2)
    return d2
# ============

d40=1.4*40
print("d40,40 X 1.4=",d40)
d=sta001(0.05,40-1,1.4);
print("01 保守投资模式,",d,round(d/d40))
d2=sta001(0.20,40-1,1.4);
print("02 激进投资模式,",d2,round(d2/d40))

dk=round(d2/d)
print("dk,两者差别（xx倍): “，dk)

import numpy as np


def sta001(k, nyear, xd):
    d2 = np.fv(k, nyear, -xd, -xd)
    d2 = round(d2)
    return d2
# ============


d40 = 1.4 * 40
print("d40,40 X 1.4=", d40)
d = sta001(0.05, 40 - 1, 1.4)
print("01 保守投资模式,", d, round(d / d40))
d2 = sta001(0.20, 40 - 1, 1.4)
print("02 激进投资模式,", d2, round(d2 / d40))

dk = round(d2 / d)
print("dk, 两者差别（xx倍): ", dk)