easyui怎么动态显示列标题

这样的json格式
 {"total":30,
"columns":[
{"field":"Name","width":100,"align":"center","title":"材质名称"},
{"field":"Code","width":80,"align":"center","title":"材质代码"},
{"field":"Re","width":100,"align":"center","title":"材质说明"},
{"field":"StuffrId","width":60,"align":"center","title":"编号"}
],"rows":[
{"StuffrId":116,"Name":"尼龙","Code":"5","Re":"345"},
{"StuffrId":115,"Name":"4541","Code":"4","Re":"213"}
]}
怎么用easyui中读出列名及列名对应下的数据，如：
材质名称 材质代码 材质说明   编号
  尼龙      5       345    116jsoneasyuijavascript