求助一下，如何切割按照范围切割数组，还有下图这种问题可以怎么解决>_<
部分代码如下cloud1 = np.asarray(ply1.points)
print(cloud1, type(cloud1), len(cloud1))
#按照x轴的中值切割点云
a = cloud1 arr = ['a', 'b', 'c', 'd', 'e']
a = arr
b = arr[:3]
c = arr
d = arr[::-1]
e = arr[::2]
f = arr[-3]
print(a)
print(b)
print(c)
print(d)
print(e)
print(f)输出结果：['c', 'd']
['a', 'b', 'c']
['c', 'd', 'e']
['e', 'd', 'c', 'b', 'a']
['a', 'c', 'e']
c
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