该方法将返回嵌套的单元格数据数组，其中每个单元格使用它的行坐标和列坐标进行索引。

This method returns a nested array of cell data, with each cell indexed by its row and column coordinates.

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该方法以数组形式返回每个行的各个元素(单元格)。

This method returns the individual elements (cells) of each row as an array.

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表中每行有多少单元格，这个数组中就有多少个函数。

There are as many functions in this array as there are cells in each table row.

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