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- YDOOK：Python numpy Ndarray 数组形状改变 reshape
Python numpy Ndarray 数组形状改变 reshape
使用 reshape : 不能直接改变调用 Ndarray 数组对象的形状，只能间接将改变的内容赋值给新的变量：
import numpy
as np
a
= np
.arange
(20)
print(a
)
print(a
.ndim
)
b
= a
.reshape
(2, 5, 2)
print(b
)
print(b
.ndim
)
print(a
)
print(a
.ndim
)
结果：
import numpy
as np
a
= np
.arange
(20)
print(a
)
print(a
.ndim
)
b
= a
.reshape
(2, 5, 2)
print(b
)
print(b
.ndim
)
print(a
)
print(a
.ndim
)
