This paper proposes an algorithm that is used to construct the Web structure tree and a Web information extraction method based on Web page structure tree.

结合树型结构和网络结构的自身优势与缺陷，提出了城市绿地树网型结构模式，并对城市绿地树网结构的特征、优势和研究方向提出了建议。

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In other words, the Web browser can very easily change the appearance and structure of the tree using object properties like this.

换句话说，Web浏览器使用对象属性可以非常容易地更改树的外观和结构。

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The answer to this problem — at least, the answer chosen by today's Web browsers — is to use a tree structure to represent HTML.

这个问题的答案(至少是由当今Web浏览器选择的答案)是使用树结构来表示HTML。

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