对于这种情况，您可以使用这个名称将参数值绑定到查询。

In that case, you can bind the parameter value to the query using that name.

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请注意，由于add函数的输入参数在运行时被绑定到int类自变量，因此产生了数值的增加。

Note that a numeric addition has occurred because the input parameter to the add function is bound to an int type argument at function execution time. Now, try this.

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建立一个绑定类型模板并将其命名为ShelvesList通过设定参数值t为Shelf经其与类List联系起来。

Create a template binding class named ShelvesList with a binding to the List class by setting the parameter t to Shelf.

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