Let's first consider the following code snippet in Listing 16 that shows how such a dynamic renderer can be built.

我们先考虑清单16中的代码片段，它说明如何构建这样的动态呈现器。

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Further, the effect of certain expressions is undefined. For example, consider the following code.

进一步讲，某些表达式的效果是未定义的。例如，考虑下面的代码。

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Consider the following code snippet.

可以考虑下面的代码片段。

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