HTML DOM liga coleção
Document Object Definição e Uso
Retorna uma coleção de links para toda a gama atual de ligação documentos.
Dica: links definir cálculo <a href=""> tag e <area> tag.
gramática
document.links[].property
Suporte a navegadores
Todos os principais navegadores apoiar a recolha de ligações
Exemplos
exemplo 1
Retorna o número de documentos vinculados:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>本教程(w3big.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 教程</a></p>
<p>链接/地址数目:
<script>
document.write(document.links.length);
</script></p>
</body>
</html>
<html>
<head>
<meta charset="utf-8">
<title>本教程(w3big.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 教程</a></p>
<p>链接/地址数目:
<script>
document.write(document.links.length);
</script></p>
</body>
</html>
Exemplos de saída acima:
Ligações / Número Endereço: 4
tente »
exemplo 2
Retorna o primeiro link do documento:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>本教程(w3big.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 教程</a></p>
<p>第一个链接/地址的ID：
<script>
document.write(document.links[0].id);
</script></p>
</body>
</html>
<html>
<head>
<meta charset="utf-8">
<title>本教程(w3big.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 教程</a></p>
<p>第一个链接/地址的ID：
<script>
document.write(document.links[0].id);
</script></p>
</body>
</html>
Exemplos de saída acima:
第一个链接/地址的ID：sun
tente »
Document Object