The DHTML object model lets you modify on the fly the structure of the page, but all the changes will be lost as soon as you refresh the view by hitting F5 or clicking the browser's refresh button.

DHTML对象模型使你能够随意修改网页的结构，但这一变化在按f 5刷新后全部复原。

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Normally, to see the changes on your page, you click the Refresh button on the browser toolbar or press the F5 key on your keyboard.

一般情况下，查看你的网页的变化，你点击浏览器工具条上的刷新按钮，或者按你的键盘上的F5键。

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