layui.use(['form', 'jquery', 'layer', 'element'], function () {
    var form = layui.form,
        $ = layui.$,
        layer = layui.layer,
        element = layui.element;

 string strli  = "<p>更新后的p标签</p>";
 //更新id为tbody1的页面数据
 layui.jquery("#tbody1").html(strli);
 form.render();
 element.init(); //一定初始化一次
});