切片器对象（例如，SliceMaker来自其他问题或np.s_）可以接受多个逗号分隔的切片；它们被接收为tuple的sliceS或其它目的：
from numpy import s_
s_[0, 3:5, 6::3]
Out[1]: (0, slice(3, 5, None), slice(6, None, 3))
NumPy将此用于多维数组，但是您可以将其用于切片连接：
def xslice(arr, slices):
if isinstance(slices, tuple):
return sum((arr[s] if isinstance(s, slice) else [arr[s]] for s in slices), [])
elif isinstance(slices, slice):
return arr[slices]
else:
return [arr[slices]]
xslice(list(range(10)), s_[0, 3:5, 6::3])
Out[1]: [0, 3, 4, 6, 9]
xslice(list(range(10)), s_[1])
Out[2]: [1]
xslice(list(range(10)), s_[:])
Out[3]: [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
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