jquery的属性
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<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'jquery5.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
<script type="text/javascript" src="js/jquery-1.6.2.min.js"></script>
<script type="text/javascript">
$(function(){
$("#a").click(function(){
alert("asd");
alert($("form input")[0].value);
//$("#c input:not(.test):enabled").val("asd");
//$("form input[class!=test]:enabled").val("我爱你");
});
$("#b").click(function(){
//alert("asdsad");
//$("form input:not(.test):disabled").val("真的很好");
//$("#single").val("Single2");
//$("#multiple").val(["Multiple2", "Multiple3"]);//是"Multiple2", "Multiple3"被选中
//$("input").val(["check2", "radio1"]);//让值为"check2", "radio1"的按钮被选中
});
//$("div:first").html('共有'+$('form input:checked').length+"被选中");
/*$(":checkbox").click(function(){
//$("div:first").html('共有'+$('form input:checked').length+"被选中");
});*/
/*$("select:first").change(function(){
var str = '';
$("select:first option:selected").each(function(){
str += $(this).val() +",";
});
$("div:eq(1)").html(str);
});*/
$(function(){
$("input:first").click(function(){
alert($("form :text").length);
$("form input:input").length;//这是指form中的input的个数,想如果<textarea/>这种就不算了
$("form :input").length;//但是这中形式向<textarea/>也会算进来
});
});
});
</script>
</head>
<body>
<!--<input type="checkbox" value="check1"/> check1
<input type="checkbox" value="check2"/> check2
<input type="radio" value="radio1"/> radio1
<input type="radio" value="radio2"/> radio2 <br>
<select id="single">
<option>Single</option>
<option>Single2</option>
</select>
<select id="multiple" multiple="multiple">
<option selected="selected">Multiple</option>
<option>Multiple2</option>
<option selected="selected">Multiple3</option>
</select><br/>
<form action="#" id="c" method="post">
<input type="button" id="a" value="test1" class="test">
<input type="button" id="b" value="test2" class="test"><br>
可用元素:<input type="text"><br>
不可用元素:<input type="text" disabled="disabled"><br>
可用元素:<input type="text"><br>
不可用元素:<input type="text" disabled="disabled"><br>
多选框:
<input type="checkbox"><input type="checkbox"><input type="checkbox"><input type="checkbox"><input type="checkbox"><br>
下拉列表1:
<select multiple="multiple">
<option>a</option><option>b</option><option>c</option><option>d</option>
</select><br><br>
下拉列表2:
<select>
<option>a</option><option>b</option><option>c</option><option>d</option>
</select>
</form>-->
<form action="">
<input type="button" value="button"><br>
<input type="checkbox"><input type="checkbox"><input type="checkbox"><input type="checkbox"><br>
<input type="file"><br>
<input type="radio"><input type="radio"><br>
<input type="reset" value="重置"><br>
<input type="submit" value="提交"><br>
<input><br>
<textarea rows="10" cols="20"></textarea><br>
<input type="button" value="button"><br>
</form>
<div></div>
<div></div>
</body>
</html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'jquery6.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
<script type="text/javascript" src="js/jquery-1.6.2.min.js"></script>
<script type="text/javascript">
$(function(){
//$("table tr:even").css("background","red");
//$("table tr:odd").css("background","orange");
$("input[type='button']").click(function()
{
var count = 0;
//alert('asd');
$("input[type='checkbox']:checked").each(function(i,n){
count++;
});
//alert(count);
//$("div").html(count);
//alert($("input :checked").length);//在input中被选中的个数,是0
//alert($("input:checked").length);//被选中的inpu的个数,是4
alert($(".test:even").length);//为奇数的div的个数
alert($(".test :even").length)//class为test的div中为奇数的div的个数
});
});
</script>
</head>
<body>
<table border="1px solid" align="center" width="80%">
<tr><td>asdasd</td><td>asdasd</td><td>asdasd</td><td>asdasd</td><td>asdasd</td></tr>
<tr><td>asdasd</td><td>asdasd</td><td>asdasd</td><td>asdasd</td><td>asdasd</td></tr>
<tr><td>asdasd</td><td>asdasd</td><td>asdasd</td><td>asdasd</td><td>asdasd</td></tr>
<tr><td>asdasd</td><td>asdasd</td><td>asdasd</td><td>asdasd</td><td>asdasd</td></tr>
<tr><td>asdasd</td><td>asdasd</td><td>asdasd</td><td>asdasd</td><td>asdasd</td></tr>
<tr><td>asdasd</td><td>asdasd</td><td>asdasd</td><td>asdasd</td><td>asdasd</td></tr>
<tr><td>asdasd</td><td>asdasd</td><td>asdasd</td><td>asdasd</td><td>asdasd</td></tr>
<tr><td>asdasd</td><td>asdasd</td><td>asdasd</td><td>asdasd</td><td>asdasd</td></tr>
<tr><td>asdasd</td><td>asdasd</td><td>asdasd</td><td>asdasd</td><td>asdasd</td></tr>
<tr><td>asdasd</td><td>asdasd</td><td>asdasd</td><td>asdasd</td><td>asdasd</td></tr>
</table>
<div></div>
<input type="button" value="计算"><br>
<input type="checkbox" value="asd">
<input type="checkbox" checked="checked">
<input type="checkbox" checked="checked">
<input type="checkbox" checked="checked">
<input type="checkbox">
<input type="checkbox">
<input type="checkbox">
<div class="test">
<div class="test" style="display: block">q</div>
<div class="test" style="display: block">a</div>
<div class="test" style="display: block">s</div>
<div class="test" style="display: block">d</div>
</div>
</body>
</html>
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