<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>無標題文檔</title>
</head>
<body>
<h1>Snapshots</h1>
<ul>
<li>
<a href="p_w_picpaths/Chrysanthemum.jpg" return false;" title="A Chrysanthemum display">Chrysanthemum</a>
</li>
<li>
<a href="p_w_picpaths/Desert.jpg" return false;" title="A Desert display">Desert</a>
</li>
<li>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>無標題文檔</title>
</head>
<body>
<h1>Snapshots</h1>
<ul>
<li>
<a href="p_w_picpaths/Chrysanthemum.jpg" return false;" title="A Chrysanthemum display">Chrysanthemum</a>
</li>
<li>
<a href="p_w_picpaths/Desert.jpg" return false;" title="A Desert display">Desert</a>
</li>
<li>
<!-- 點擊的時候調用showPic(this)方法，這裏this爲當前節點、return false: 說明這個鏈接沒有被點擊 -->
<a href="p_w_picpaths/Hydrangeas.jpg" return false;" title="A Hydrangeas display">Hydrangeas</a>
</li>
</ul>
<script src="file.js"></script>
</body>
</html>
<a href="p_w_picpaths/Hydrangeas.jpg" return false;" title="A Hydrangeas display">Hydrangeas</a>
</li>
<!-- 在下方顯示圖片 -->
<img id="placeholder" src="" alt="my p_w_picpath gallery" />
<img id="placeholder" src="" alt="my p_w_picpath gallery" />
<!-- 通過id更改字體 -->
<p id="description">Choose an p_w_picpath.</p></ul>
<script src="file.js"></script>
</body>
</html>
JavaScript
function showPic(whichpic) {
var source = whichpic.getAttribute("href");
var placeholder = document.getElementById("placeholder");
placeholder.setAttribute("src", source);
var text = whichpic.getAttribute("title");
var description = document.getElementById("description");
description.firstChild.nodeValue = text;
}
var source = whichpic.getAttribute("href");
var placeholder = document.getElementById("placeholder");
placeholder.setAttribute("src", source);
var text = whichpic.getAttribute("title");
var description = document.getElementById("description");
description.firstChild.nodeValue = text;
}
- childNodes: 獲取子節點的數組
- nodeType: 節點類型
-
- 元素節點: 1
- 屬性節點: 2
- 文本節點: 3
- nodeValue: 節點的值
- firstChild: 第一個子節點
- lastChild: 最後一個子節點