<!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=utf-8" />
<title>louis-blog >> jQuery 对checkbox的操作</title>
<script src="jquery-1.8.0.min.js"></script>
<script>
$("document").ready(function(){
$("#btn1").click(function(){
$("input[name='checkbox']").attr("checked",'true');//全选
})
$("#btn2").click(function(){
$("input[name='checkbox']").removeAttr("checked");//取消全选
})
$("#btn3").click(function(){
$("input[name='checkbox']:even").attr("checked",'true');//选中所有奇数
})
$("#btn4").click(function(){
$("input[name='checkbox']").each(function(){//反选
if($(this).attr("checked")){
$(this).removeAttr("checked");
}
else{
$(this).attr("checked",'true');
}
})
})
$("#btn5").click(function(){//输出选中的值
var str="";
$("input[name='checkbox']:checked").each(function(){
str+=$(this).val()+"/r/n";
//alert($(this).val());
})
alert(str);
})
})
</script>
</HEAD>
<body style="text-align:center;margin: 0 auto;font-size: 12px;" mce_style="text-align:center;margin: 0 auto;font-size: 12px;">
<div style="border: 1px solid #999; 500px; padding: 15px; background: #eee; margin-top: 150px;">
<form name="form1" method="post" action="">
<input type="button" id="btn1" value="全选">
<input type="button" id="btn2" value="取消全选">
<input type="button" id="btn3" value="选中所有奇数">
<input type="button" id="btn4" value="反选">
<input type="button" id="btn5" value="获得选中的所有值">
<br /><br />
<input type="checkbox" name="checkbox" value="checkbox1">
checkbox1
<input type="checkbox" name="checkbox" value="checkbox2">
checkbox2
<input type="checkbox" name="checkbox" value="checkbox3">
checkbox3
<input type="checkbox" name="checkbox" value="checkbox4">
checkbox4
<input type="checkbox" name="checkbox" value="checkbox5">
checkbox5
<input type="checkbox" name="checkbox" value="checkbox6">
checkbox6
</form>
</div>
</body>
</HTML>
<!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=utf-8" />
<title>louis-blog >> js 对checkbox的操作</title>
<script src="jquery-1.8.0.min.js"></script>
<script>
function checkall(){
for (var i=0;i<document.getElementsByName('checkbox').length;i++) {
var e=document.getElementsByName('checkbox')[i];
e.checked=true;
}
}
function cancelall(){
for (var i=0;i<document.getElementsByName('checkbox').length;i++) {
var e=document.getElementsByName('checkbox')[i];
e.checked=false;
}
}
function oppall(){
for (var i=0;i<document.getElementsByName('checkbox').length;i++) {
var e=document.getElementsByName('checkbox')[i];
e.checked=!e.checked;
}
}
</script>
</HEAD>
<body style="text-align:center;margin: 0 auto;font-size: 12px;" mce_style="text-align:center;margin: 0 auto;font-size: 12px;">
<div style="border: 1px solid #999; 500px; padding: 15px; background: #eee; margin-top: 150px;">
<form name="form1" method="post" action="">
<input type="button" id="btn1" onclick="checkall()" value="全选">
<input type="button" id="btn2" onclick="cancelall()" value="取消全选">
<input type="button" id="btn4" onclick="oppall()" value="反选">
<br /><br />
<input type="checkbox" name="checkbox" value="checkbox1">
checkbox1
<input type="checkbox" name="checkbox" value="checkbox2">
checkbox2
<input type="checkbox" name="checkbox" value="checkbox3">
checkbox3
<input type="checkbox" name="checkbox" value="checkbox4">
checkbox4
<input type="checkbox" name="checkbox" value="checkbox5">
checkbox5
<input type="checkbox" name="checkbox" value="checkbox6">
checkbox6
</form>
</div>
</body>
</HTML>