numpy中使用：

• 更改为任意维度：reshape()
• 展开为1维：flatten()

示例代码

import numpy as np

if __name__ == '__main__':
    array = np.random.random(size=(5, 10))  # (5, 10)
    reshape_array = array.reshape(25, 2)  # 更改为任意维度
    print(reshape_array.shape)  # (25, 2)

    flatten_array = array.flatten()  # 展为1维
    print(flatten_array.shape)  # (50,)

    col_array = array.reshape(-1, 1)  # 每个数据占用一维
    print(col_array.shape)  # (50, 1)