简单验证复选框，单选框必填
例子代码：
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>layui</title>
<meta name="renderer" content="webkit">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<link rel="stylesheet" href="//res.layui.com/layui/dist/css/layui.css" media="all">
<!-- 注意：如果你直接复制所有代码到本地，上述css路径需要改成你本地的 -->
</head>
<body> <fieldset class="layui-elem-field layui-field-title" style="margin-top: 50px;">
<legend>初始赋值演示</legend>
</fieldset> <form class="layui-form" action="" lay-filter="example">
<div class="layui-form-item">
<label class="layui-form-label">复选框</label>
<div class="layui-input-block">
<input type="checkbox" name="like" lay-skin="primary" lay-verify="otherReq" title="写作">
<input type="checkbox" name="like" lay-skin="primary" lay-verify="otherReq" title="阅读">
<input type="checkbox" name="like" lay-verify="otherReq" title="游戏">
</div>
</div>
<div class="layui-form-item">
<label class="layui-form-label">单选框</label>
<div class="layui-input-block">
<input type="radio" name="sex" value="男" lay-verify="otherReq" title="男" >
<input type="radio" name="sex" value="女" lay-verify="otherReq" title="女">
</div>
</div> <div class="layui-form-item">
<div class="layui-input-block">
<button class="layui-btn" lay-submit="" lay-filter="demo1">立即提交</button>
</div>
</div>
</form> <script src="//res.layui.com/layui/dist/layui.js" charset="utf-8"></script>
<!-- 注意：如果你直接复制所有代码到本地，上述js路径需要改成你本地的 -->
<script>
layui.use(['form', 'layedit', 'laydate'], function(){
var form = layui.form
,layer = layui.layer
,layedit = layui.layedit
,laydate = layui.laydate; //自定义验证规则
form.verify({
otherReq: function(value,item){
var $ = layui.$;
var verifyName=$(item).attr('name')
, verifyType=$(item).attr('type')
,formElem=$(item).parents('.layui-form')//获取当前所在的form元素，如果存在的话
,verifyElem=formElem.find('input[name='+verifyName+']')//获取需要校验的元素
,isTrue= verifyElem.is(':checked')//是否命中校验
,focusElem = verifyElem.next().find('i.layui-icon');//焦点元素
if(!isTrue || !value){
//定位焦点
focusElem.css(verifyType=='radio'?{"color":"#FF5722"}:{"border-color":"#FF5722"});
//对非输入框设置焦点
focusElem.first().attr("tabIndex","").css("outline","").blur(function() {
focusElem.css(verifyType=='radio'?{"color":""}:{"border-color":""});
}).focus();
return '必填项不能为空';
}
}
}); //监听提交
form.on('submit(demo1)', function(data){
layer.alert(JSON.stringify(data.field), {
title: '最终的提交信息'
})
return false;
}); });
</script> </body>
</html>
注意：