jQuery - ??? ? ?? ????
jQuery DOM ??
jQuery?? ?? ??? ??? DOM? ???? ?????.
jQuery? ??? ??? ?? ????? ??? ? ?? ??? DOM ?? ???? ?????.
DOM ??? ?? ? ?? ???? ???? jQuery ???:
text() - ??? ??? ??? ??? ????? ?????.
html() - ??? ??? ????? ?????. (HTML ?? ??)
val() - ?? ??? ?? ????? ?????.
jQuery text() ? html() ???? ?? ???? ???? ??? ?????.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js">
</script>
<script>
$(document).ready(function(){
$("#btn1").click(function(){
alert("Text: " + $("#test").text());
});
$("#btn2").click(function(){
alert("HTML: " + $("#test").html());
});
});
</script>
</head>
<body>
<p id="test">這是段落中的 <b>粗體</b> 文本。</p>
<button id="btn1">顯示文本</button>
<button id="btn2">顯示 HTML</button>
</body>
</html> jQuery? ?? ??? ???? val() ???? ?? ??? ?? ?????.
<!DOCTYPE html>
<html>
<meta charset="utf-8">
<head>
<script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js">
</script>
<script>
$(document).ready(function(){
$("button").click(function(){
alert("值為: " + $("#test").val());
});
});
</script>
</head>
<body>
<p>名稱: <input type="text" id="test" value="php中文網(wǎng)"></p>
<button>顯示值</button>
</body>
</html>attr() ??
jQuery attr() ???? ?? ?? ???? ? ?????.
???? href ?? ?? ???? ??? ?????.
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js">
</script>
<script>
$(document).ready(function(){
$("button").click(function(){
alert($("#php").attr("href"));
});
});
</script>
</head>
<body>
<p><a href="http://ipnx.cn" id="php">php中文網(wǎng)</a></p>
<button>顯示 href 屬性的值</button>
</body>
</html>
