easyui的datagrid生成合并行合计计算价格

easyui的datagrid生成合并行,合计计算价格!

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----
     目录           0  2016-08-08 11:19  easyui-datagrid\
     文件        2459  2016-08-03 18:40  easyui-datagrid\data.json
     文件        9121  2016-08-03 19:31  easyui-datagrid\demo.html
     目录           0  2016-08-08 11:19  easyui-datagrid\jquery-easyui\
     文件        6527  2016-06-03 01:15  easyui-datagrid\jquery-easyui\easyloader.js
     文件      316043  2016-06-03 01:15  easyui-datagrid\jquery-easyui\jquery.easyui.min.js
     文件       83095  2016-06-03 01:15  easyui-datagrid\jquery-easyui\jquery.min.js
     目录           0  2016-08-08 11:19  easyui-datagrid\jquery-easyui\locale\
     文件        2624  2016-06-03 01:15  easyui-datagrid\jquery-easyui\locale\easyui-lang-zh_CN.js
     文件        2109  2016-06-03 01:15  easyui-datagrid\jquery-easyui\locale\easyui-lang-zh_TW.js
     目录           0  2016-08-08 11:19  easyui-datagrid\jquery-easyui\src\
     文件        8864  2016-06-03 01:15  easyui-datagrid\jquery-easyui\src\easyloader.js
     文件        9556  2016-06-03 01:15  easyui-datagrid\jquery-easyui\src\jquery.accordion.js
     文件       12266  2016-06-03 01:15  easyui-datagrid\jquery-easyui\src\jquery.calendar.js
     文件       13719  2016-06-03 01:15  easyui-datagrid\jquery-easyui\src\jquery.combobox.js
     文件        5037  2016-06-03 01:15  easyui-datagrid\jquery-easyui\src\jquery.datebox.js
     文件       11364  2016-06-03 01:15  easyui-datagrid\jquery-easyui\src\jquery.draggable.js
     文件        2222  2016-06-03 01:15  easyui-datagrid\jquery-easyui\src\jquery.droppable.js
     文件        8624  2016-06-03 01:15  easyui-datagrid\jquery-easyui\src\jquery.form.js
     文件        4893  2016-06-03 01:15  easyui-datagrid\jquery-easyui\src\jquery.linkbutton.js
     文件       14500  2016-06-03 01:15  easyui-datagrid\jquery-easyui\src\jquery.menu.js
     文件        6851  2016-06-03 01:15  easyui-datagrid\jquery-easyui\src\jquery.parser.js
     文件        2831  2016-06-03 01:15  easyui-datagrid\jquery-easyui\src\jquery.progressbar.js
     文件       10007  2016-06-03 01:15  easyui-datagrid\jquery-easyui\src\jquery.propertygrid.js
     文件        7502  2016-06-03 01:15  easyui-datagrid\jquery-easyui\src\jquery.resizable.js
     文件        9623  2016-06-03 01:15  easyui-datagrid\jquery-easyui\src\jquery.slider.js
     文件       20422  2016-06-03 01:15  easyui-datagrid\jquery-easyui\src\jquery.tabs.js
     文件       11318  2016-06-03 01:15  easyui-datagrid\jquery-easyui\src\jquery.window.js
     目录           0  2016-08-08 11:19  easyui-datagrid\jquery-easyui\themes\
     目录           0  2016-08-08 11:19  easyui-datagrid\jquery-easyui\themes\black\
     文件         829  2016-06-03 01:15  easyui-datagrid\jquery-easyui\themes\black\accordion.css
............此处省略261个文件信息