The resource adapter might use this method to check that numeric properties are within the acceptable range or to ensure that a string property representing a value from an enumeration is valid.
资源适配器可能用这个方法检查算术属性是否在可以接受的范围之内，或者确保表示枚举值的字符串有效。
The first line is simple: it defines an adapter directly from a string to ILisp, the call to adapt (" foo bar ", ILisp) just returns the results of the lambda function.
第一行比较简单，我们定义了一个直接从字符串到ILisp的适配器，对adapt (“ foo bar ”，ILisp)的调用只是返回了lambda函数的结果。
NET mobile controls, the page adapter must persist this string to the client and ensure that it is available on a subsequent postback.
NET 移动控件，页适配器必须将该字符串保持到客户端，并确保它在后面的回发中可用。
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