问题描述：

<button class="layui-btn" id="add">申请</button>

模态框：

<div class="layui-panel" id="finance"  style="display:none;">
            <div style="padding:30px">                
            <form  class="layui-form layui-form-pane" >      
                   <div class="layui-form-item">
                           <label class="layui-form-label">付款人</label>
                           <div class="layui-input-block">
                                <input type="text" name="payer" placeholder="付款人" value="{$nick_name}" class="layui-input" >
                           </div>
                   </div>
                 <div class="layui-form-item">
                  <label class="layui-form-label">所属类别</label>
                  <div class="layui-input-block">
                    <select name="type_id">
                      <option value="">下拉选择</option>
                       {volist name="cosplaytype_list" id="vo"}
                       <option value="{$vo.id}">{$vo.title}</option>
                       {/volist}
                    </select>
                  </div>
                </div>
                  <div class="layui-form-item">
                     <label class="layui-form-label">上传图片</label>
                     <div class="layui-input-block">
                         <button type="button" class="layui-btn" id="uploadClick">
                         <i class="layui-icon">&#xe67c;</i>上传图片
                      </button>
                      <div class="layui-upload-list">
                          <img class="layui-upload-img" width="100px" height="100px" id="showPic">
                          <p id="demoText"></p>
                      </div>
                        <input type="hidden" name="thumb" id="pichidden">
                     </div>

                  </div>
                  <div class="layui-input-block">
                    <button lay-submit lay-filter="myform" class="btn btn-danger">提交申请</button>
                  </div>
            </form>
            </div>
        </div>
<!--点击事件script：-->
$("#add").click(function(){
            layer.open({
                type:1,
                title:"申请",
                skin: 'layui-layer-rim', //加上边框            
               content: $("#finance").html(),
               success:function(e){               
                  form.render('select');
                }
            })
        })

解决办法：

      content: $("#show_editprompt").html(),
       //打开弹出层时success生效后刷新表单，渲染页面
        success:function(e){
          form.render('select');或者form.render()
       }