<ul id="listUl"></ul>
<button id="add">添加</button>
<script src="https://cdn.bootcss.com/jquery/1.10.2/jquery.min.js"></script>
<script type="text/javascript">
var index=0;
$("#add").click(function(){
var html='';
html+='<li class="ItemUl">';
html+='<input type="text" data-value="title" name="user['+index+'].title" lay-verify="title" autocomplete="off" placeholder="请输入标题" class="layui-input">';
html+='<input type="text" data-value="username" name="user['+index+'].username" lay-verify="required" placeholder="请输入" autocomplete="off" class="layui-input">';
html+='<button onclick="del(this)">删除</button>';
html+='</li>';
$("#listUl").append(html);
index ++;
})
//删除
function del(that){
$(that).parent().remove();
var items=$(".ItemUl")
index=items.length;
items.each(function (i) {
var inputs =$(this).find("input");
inputs.each(function () {
var inp = $(this).data("value");
$(this).attr("name", "user[" + i + "]." + inp);
});
})
}
</script>