版权声明：俗世凡人行(释) QQ:748507607 https://blog.csdn.net/weixin_41887155/article/details/88728489
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>复选框</title>
</head>
<body>
兴趣爱好:
<input type="checkbox" name="category" value="1" />财经
<input type="checkbox" name="category" value="2" />汽车
<input type="checkbox" name="category" value="3" />科技
<input type="checkbox" name="category" value="4" />房产
<input type="checkbox" name="category" value="5" />旅游
<p>
<button id="quanxuan">全选</button>
<button id="quanbuxuan">全不选</button>
<button id="getValue">获取选中的值</button>
<button id="jishu">选中奇数</button>
<button id="oushu">选中偶数</button>
<button id="fanxuan">反选</button>
</p>
</body>
</html>
<script src="http://code.jquery.com/jquery-2.1.1.min.js"></script>
<script type="text/javascript">
//全选
$("#quanxuan").click(function(){
$("input[name='category']").attr("checked","true");
});
//全不选
$("#quanbuxuan").click(function(){
$("input[name='category']").removeAttr("checked");
});
//获取复选框的值并拼接成字符串,逗号分开
$("#getValue").click(function(){
var checkname = "";
$("input[name='category']:checkbox:checked").each(function(){
checkname+=$(this).val()+",";
})
alert(checkname);
});
//选中所有奇数
$("#jishu").click(function(){
$("input[name='category']:odd").attr("checked","true");
});
//选中所有偶数
$("#oushu").click(function(){
$("input[name='category']:even").attr("checked","true");
});
//反
$("#fanxuan").click(function(){
$("input[name='category']").each(function(){
$(this).prop("checked",!$(this).prop("checked"));
})
});
</script>