如何在python中保存double文件？

import pickle

data = [1.2, 3.4, 5.6, 7.8]

with open('data.pickle', 'wb') as f:
    pickle.dump(data, f)

import numpy as np

data = np.array([1.2, 3.4, 5.6, 7.8], dtype=np.float64)

np.save('data.npy', data)

import struct

data = [1.2, 3.4, 5.6, 7.8]

with open('data.bin', 'wb') as f:
    for d in data:
        f.write(struct.pack('d', d))