In this example, the substitution group element types, and so on are allowed anywhere the element is-in this case, inline in the text of the paragraph.
在这个示例中，替换群元素类型、等允许位于元素所在的任何位置—在本例中为段落的文本行内。
In this example, variable substitution is used for the ID in case your code needs to access the button through its ID.
在本例中，为了防止代码通过其ID访问此按钮，用变量替换了此ID。
In the simple case, consolidation or single point of access and substitution become more or less the same.
在简单的情况下，合并或单一访问点和替换或多或少有些相同。
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