numpy-保存数组变量到本地

import numpy as np

training = ...

# 保存
np.savez('training', d1=training['x'], d2=training['y'])

# 读取
training = np.load('training.npz')

# 查看数据集内的变量名
training.files()

x = training['d1']
y = training['d2']

# 如果 np.savez 不指定 d1 d2 的话，变量名将成为 arr_0 arr_1 ...