reshape 变形
53.7 reshape 变形
a.reshape(行, 列) 改变形状，元素总数不变。
a.flatten() 展平为一维。
reshape
# ======================================== # 示例：reshape # ======================================== import numpy as np a = np.arange(12) print(a.reshape(3, 4))
a.reshape(行, 列) 改变形状，元素总数不变。
a.flatten() 展平为一维。
# ======================================== # 示例：reshape # ======================================== import numpy as np a = np.arange(12) print(a.reshape(3, 4))