easyui 动态列

$.post('${createLink(action:"build Columns url ")}', params, function(data){
   var columns = [];
   var col = [];
   for(var i=0; i< data.length; i++){
      var v = data;
      var c = {title:v.title, field:v.field, 90};
      col.push(c);
   }
   columns[0] = col;
   $('#datagrid').datagrid({columns:columns});
},"json");