表单动态新增

    <h4 class="form-header h4">优势介绍</h4>
    <div class="row">
        <div class="col-sm-12">
            <div id="formpart"></div>
            <button type="button" class="btn btn-white btn-sm" id="addform"><i class="fa fa-plus">增加</i></button>
         </div>
     </div>

js部分

      $("#addform").click(function(){
            //添加的内容
            var addform = '<div class="addformbody"><h4 class="form-header h4">优势<i>'+
                          '</i>&nbsp;&nbsp;<button type="button" class="removeform btn btn-white btn-sm" onclick="del(this)"><i class="fa fa-plus">删除</i></button></h4>'+
                          '<div class="form-group">' +
                          '<label class="col-sm-3 control-label is-required">主题：</label>' +
                          '<div class="col-sm-8">' +
                          '<input name="theme" class="form-control" type="text" required>' +
                          '</div>' +
                          '</div>' +
                          '<div class="form-group">' +
                          '<label class="col-sm-3 control-label is-required">内容：</label>' +
                          '<div class="col-sm-8">' +
                          '<textarea name="content" class="form-control" required></textarea>' +
                          '</div></div>'+
                          '</div>';
            $("#formpart").append($(addform));
        });
        function del(o) {
            $(o).parents(".addformbody").remove();
        }