这是我的HTML文件
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8"/>
<title>Image Gallery</title>
</head>
<body>
<h1>Snapshots</h1>
<ul>
<li>
<a href="images/fireworks.jpg" onclick="showPic(this); return false;" title="A fireworks display">Fireworks</a>
</li>
<li>
<a href="images/coffee.jpg" onclick="showPic(this); return false;" title="A cup of black coffee">Coffee</a>
</li>
<li>
<a href="images/rose.jpg" onclick="showPic(this); return false;" title="a red,red rose">Rose</a>
</li>
<li>
<a href="images/bigben.jpg" onclick="showPic(this); return false;" title="The famous clock">Big Ben</a>
</li>
</ul>
<image id="placeholder" src="images/placeholder.gif" alt="my image gallery"/>
<p id="discription">Choose an image.</p>
<script src="scripts/showPic.js"></script>
</body>
</html>
这是我的JS
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;}
我把`var text=whichpic.getAttribute("title");
var description=document.getElementById("description");
description.firstChild.nodeValue=text;
这块删掉就可以正常运行函数 加上之后就运行不了 重打了好多次 也检查了 还是
不行 只好求助 那位大哥帮忙看下`<p id="discription">Choose an image.</p>这一句的id值应为"description"，拼写错误