关于python：AttributeError：’numpy.ndarray’对象没有属性’step’

AttributeError: 'numpy.ndarray' object has no attribute 'step'

我要获取三维网格，并使用以下命令：

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x = np.linspace(-10,10,100)
y = np.linspace(-10,10,100)
z = np.linspace(-10,10,100)

X,Y,Z = np.mgrid[x, y, z]

这样的错误出现了

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AttributeError Traceback (most recent call last)
in ()
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----> 8 X,Y,Z = np.mgrid[x, y, z]
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10 #X,Y,Z = np.mgrid[-10:10, -10:10, -10:10]

~/Desktop/PyProjects/Phys/env/lib/python3.6/site-packages/numpy/lib/index_tricks.py in __getitem__(self, key)
165 typ = int
166 for k in range(len(key)):
--> 167 step = key[k].step
168 start = key[k].start
169 if start is None:

AttributeError: 'numpy.ndarray' object has no attribute 'step'

号

我知道我可以用这个表格生成网格

1	X,Y,Z = np.mgrid[-10:10, -10:10, -10:10]

但它对我来说不是移动的