如何获取当前选中的option的class属性的值
例如:<option value="1" class="1">1111</option>
<option value="2" class="2">1111</option>
<option value="3" class="3">1111</option>
<option value="4" class="4">1111</option>
我怎么在js的function中获取当前选中的哪个class的值
------解决方案--------------------jquery代码:
$('option:selected').attr('class');
------解决方案--------------------
<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>test-selectedclass</title>
</head>
<body>
<select name="" id="test">
<option value="1" class="1">1111</option>
<option value="2" class="2">2222</option>
<option value="3" class="3">3333</option>
<option value="4" class="4">4444</option>
</select>
<script type="text/javascript">
var test = document.getElementById('test');
test.onchange = function(){
for(var i = 0; i < test.options.length; i++){
var opt = test.options[i];
if (opt.selected) {
console.log(opt.className);
};
}
}
</script>
</body>
</html>
------解决方案--------------------<!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=gb2312" />
<title>无标题文档</title>
<script type="text/javascript">
function show(){
var se=document.getElementById("select");
var a=se[se.selectedIndex].className;
alert(a);
}
</script>
</head>
<body>
<select id="select" onchange="show()">
<option value="1" class="1">1111</option>
<option value="2" class="2">1111</option>
<option value="3" class="3">1111</option>
<option value="4" class="4">1111</option>
</select>
</body>
</html>
这样试试
------解决方案--------------------
顶一个,忘了有 selectedIndex 活呢。