For the next example, we'll add the ability to store and manipulate arrays of integer, Boolean, and string values.

在接下来的例子中，我们将增加存储和操纵整型、布尔型和字符串值的功能。

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If we want to add another option — for example, Submitted — the Boolean attribute, which allows two possible values true or false, does not accommodate this design approach anymore.

如果我们想要添加另外一个选项——例如，Submitted——布尔型属性，它拥有两个值true或者false，就不再需要提供这个设计方法了。

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