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对三维空间中的一组坐标点进行范围限制。
不用if 直接进行矩阵判断 假如num 是 N*3 的矩阵 每行是一个点的 xyz flag=numel（：，1）>30 | numel（：，1）<-30 | numel（：，2）>30 | numel（：，2）<-30 ...
3 years ago | 0
| accepted
