code: function(sets){
        var othis = $(this)
        ,index = othis.parents('tr').eq(0).data('index')
        ,tr = that.layBody.find('tr[data-index="'+ index +'"]')
        ,data = table.cache[that.key][index];
        
        return $.extend({
          tr: tr //行元素
          ,data: table.clearCacheKey(data) //当前行数据
          ,del: function(){ //删除行数据
            table.cache[that.key][index] = [];
            tr.remove();
            that.scrollPatch();
          }
          ,update: function(fields){ //修改行数据
            fields = fields || {};
            layui.each(fields, function(key, value){
              if(key in data){
                var templet, td = tr.children('td[data-field="'+ key +'"]');
                data[key] = value;
                that.eachCols(function(i, item2){
                  if(item2.field == key && item2.templet){
                    templet = item2.templet;
                  }
                });
                td.children(ELEM_CELL).html(function(){
                  return templet ? function(){
                    return typeof templet === 'function' 
                      ? templet(data)
                    : laytpl($(templet).html() || value).render(data)
                  }() : value;
                }());
                td.data('content', value);
              }
            });
          }
        }, sets);
      }
docs: 数据行中的事件监听返回的公共对象成员