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数组1，9我想沿着y轴做循环，如果满足x=1时，给出9；满足x=7时，给出5。 7，5数组很大，y轴没重复。
@maker发 没……没看懂，这个9和5是按y轴的循环次数？只是单纯沿单条y轴循环的话，以x=1这条y轴为例去比较值，直接用系统的循环，然后填数组.height，然后用数组.at(1,loopindex)=要比较的值就行了
