代码示例
# -*- coding: utf-8 -*-
import numpy as np
matrix = np.arange(12).reshape(4, -1)
print(matrix)
"""
[[ 0 1 2]
[ 3 4 5]
[ 6 7 8]
[ 9 10 11]]
"""
# 保存二维数组
np.savetxt("matrix.txt", matrix, fmt="%d", delimiter=",")
# 读取二维数组
m = np.loadtxt("matrix.txt", dtype=int, delimiter=",")
print(m)
"""
[[ 0 1 2]
[ 3 4 5]
[ 6 7 8]
[ 9 10 11]]
"""
参考
python如何保存矩阵,保存matrix,保存numpy.ndarray