jQuery获取(选中)单选,复选框,下拉框中的值

实例如下：


代码如下:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<title>MyHtml.html</title>

<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="this is my page">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">

<!--<link rel="stylesheet" type="text/css" href="./styles.css">-->
<script type="text/javascript" src="jquery-1.3.min.js"></script>
<script type="text/javascript">
function aa(){
// 获取单选按钮的值
var a = $("input[name='sex'][checked]").val();
alert(a);
}
function bb(){
// 若选中返回true，否则返回false
var c = $("#a").attr("checked");
alert(c);

// 获取单个复选框的值
var d = $("input[name='checkName'][checked]").val();
alert(d);

// 获取多个复选框的值
$("input[name='checkName'][checked]").each(function(){
if(this.checked)
alert($(this).val());
});
}

function checkWeek(){
//var $param = {};
$("#mPrefType").each(function(){
//    var key = $(this).attr("name");
//    if(!$param[key])
//        $param[key] = [];
// 获得value值
var value = $("##mPrefType option:selected").val();
alert(value);
// 获得需要的值
var name = $("##mPrefType option:selected").text();
alert(name);
});
}
</script>
</head>

<body>
Number:<input type = "text" value ="" name ="num1"/><br>
Number:<input type = "text" value ="" name = "num2"/><br>
<input type = "radio" value = "a"  name = "ss" />a
<input type = "radio" value = "b"  name = "ss" />b
<input type = "radio" value = "c"  name = "ss"/>c
<input type = "radio" value = "d"  name = "ss" >d<br>
<input type = "submit"  value = "提交"/> <br>
<hr>
<input type="radio" value="男" name="sex" id="1" onclick="aa()"/>男
<input type="radio" value="女" name="sex" id="0" onclick="aa()"/>女<br>
<input type="button" value="您选择的性别" onclick="aa()"/><br>
<hr>
<input type="checkbox" name="checkName" value="aa" id="a"/>aa
<input type="checkbox" name="checkName" value="bb" id="b"/>bb
<input type="checkbox" name="checkName" value="cc"/>cc
<input type="checkbox" name="checkName" value="dd"/>dd<br>
<input type="button" value="您选择的值是" onclick="bb()"/>
<hr>
<ul>
<li>请选泽</li>
<li>
<select id="mPrefType" name="mPrefType" class="inputS" onchange="checkWeek()">
<option value=0>请选择:</option>
<option value=1>星期一</option>
<option value=2>星期二</option>
<option value=3>星期三</option>
<option value=4>星期四</option>
<option value=5>星期五</option>
<option value=6>星期六</option>
<option value=7>星期日</option>
</select>
</li>
</ul>
</body>
</html>