Gets the element at the given position, treating the array as a zero-based, single-dimensional array.

取得指定位置上的元素，并将此阵列视为以零起始的一维阵列。

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Each of the elements is a single-dimensional array of integers.

每个元素都是一维的整数阵列。

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Each of the elements is a single-dimensional array of integers.

每个元素都是一维的整数阵列。

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