按每个单元格在表中的位置引用单元格。

You refer to each cell by its location in the table.

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那么引用单元格，与直接输入计算的值有什么区别呢？如何单元格引用，单元格中的值在修改时，公式本身不需要修改，这样可以大大节省编辑的时间。

Creating a formula with cell references is useful because you can update data in your worksheet without having to rewrite the values in the formula.

youdao

从表的单元格到表单字段再到链接，您都能通过其特征和css属性惟一地引用和修改。

Anything from table cells to form fields to links, you can uniquely reference and modify client side through both their attributes and CSS properties.

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