我试图在for循环中找到前10/300的值。我知道如何找到整个循环的最大值，但我试图计算300个值，然后只使用300个值中的前10个值。在

这是我的for循环：random.shuffle(folder)

for i in range(len(folder)):

if i < 30:

phaseresult_i = []

data = np.loadtxt(dir + folder[i])

time = data[:,0]-2450000

magnitude = data[:,1]

#print ('\n File:', folder[i],'\n','Time:',time,'\n', 'Magnitude:', magnitude)

t = 10000 * time

y = np.sin(2 * np.pi * t) * time

frequency, power = LombScargle(t, y).autopower()

period = np.log(1/frequency)[np.argmax(power)]

maxpower = power.max()

for t in range(len(time)):

#print(t,time[t])

floor = math.floor((time[t]-time[0])/period)

phase_i = ((time[t]-time[0])/period)-floor

phaseresult_i.append(phase_i)

maxpower_i.append(maxpower)

folder_i.append(folder[i])

else:

break

我要找的最大值是前十个最大幂及其周期。在