HTML DOM links 集合
Document 對象
定義和用法
links 集合返回當前文檔所有鏈接的數組。
提示： links 集合計算 <a href=""> 標籤和 <area> 標籤。
語法
document.links[].property
流覽器支持
所有主要流覽器都支持 links 集合
實例
實例 1
返回文檔的鏈接數：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>IT研修(xuhuhu.com)</title>
</head>
<body>
<img src ="planets.gif" width="145" height="126" alt="Planets" usemap ="#planetmap">
<map name="planetmap">
<area shape="rect" coords="0,0,82,126" href="sun.htm" alt="Sun">
<area shape="circle" coords="90,58,3" href="mercur.htm" alt="Mercury">
<area shape="circle" coords="124,58,8" href="venus.htm" alt="Venus">
</map>
<p><a href="/js/">JavaScript 教學</a></p>
<p>鏈接/地址數目:
<script>
document.write(document.links.length);
</script></p>
</body>
</html>
<html>
<head>
<meta charset="utf-8">
<title>IT研修(xuhuhu.com)</title>
</head>
<body>
<img src ="planets.gif" width="145" height="126" alt="Planets" usemap ="#planetmap">
<map name="planetmap">
<area shape="rect" coords="0,0,82,126" href="sun.htm" alt="Sun">
<area shape="circle" coords="90,58,3" href="mercur.htm" alt="Mercury">
<area shape="circle" coords="124,58,8" href="venus.htm" alt="Venus">
</map>
<p><a href="/js/">JavaScript 教學</a></p>
<p>鏈接/地址數目:
<script>
document.write(document.links.length);
</script></p>
</body>
</html>
以上實例輸出結果：
鏈接/地址數目: 4
實例 2
返回文檔的第一個鏈接：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>IT研修(xuhuhu.com)</title>
</head>
<body>
<img src ="planets.gif" width="145" height="126" alt="Planets" usemap ="#planetmap">
<map name="planetmap">
<area id="sun" shape="rect" coords="0,0,82,126" href="sun.htm" alt="Sun">
<area id="mercury" shape="circle" coords="90,58,3" href="mercur.htm" alt="Mercury">
<area id="venus" shape="circle" coords="124,58,8" href="venus.htm" alt="Venus">
</map>
<p><a id="javascript" href="/js/">JavaScript 教學</a></p>
<p>第一個鏈接/地址的ID：
<script>
document.write(document.links[0].id);
</script></p>
</body>
</html>
<html>
<head>
<meta charset="utf-8">
<title>IT研修(xuhuhu.com)</title>
</head>
<body>
<img src ="planets.gif" width="145" height="126" alt="Planets" usemap ="#planetmap">
<map name="planetmap">
<area id="sun" shape="rect" coords="0,0,82,126" href="sun.htm" alt="Sun">
<area id="mercury" shape="circle" coords="90,58,3" href="mercur.htm" alt="Mercury">
<area id="venus" shape="circle" coords="124,58,8" href="venus.htm" alt="Venus">
</map>
<p><a id="javascript" href="/js/">JavaScript 教學</a></p>
<p>第一個鏈接/地址的ID：
<script>
document.write(document.links[0].id);
</script></p>
</body>
</html>
以上實例輸出結果：
第一個鏈接/地址的ID：sun
Document 對象