layui数据表格删除当前行的实现方法

t2 = {
      elem: '#test2',
      data: tableData2,
      page: false,
      width: $(parent.window).width()-50,
      cols: [[
        {type:'checkbox',field:'id'},
        {field:'cstMoldNo', title: '客户模号',edit:'text'},
        {field:'cstProdName', title: '产品名称',edit:'text'},
        {field:'material', title: '产品材料',edit:'text'},
        {field:'firstTryDate', title: '验证日期',edit:'text'},
        {field:'deliveryDate', title: '交货日期',edit:'text'},
        {field:'unit', title: '单位',edit:'text'},
        {field:'count',   title: '数量',edit:'text'},
        {field:'upTax',   title: '含税单价',edit:'text'},
        {field:'priceTax',    title: '含税金额',edit:'text'},
        {field:'remark', title: '备注',edit:'text'},
        {fixed: 'right', title: '操作',width: '10%',align: 'center',toolbar: '#barDemo'}
      ]]
    };

if(obj.event === "del"){
       layer.confirm("你确定要删除么？",{btn:['是的,我确定','我再想想']},
           function(){
             var oldData = table.cache["test2"];
             oldData.splice(obj.tr.data('index'),1);
             layer.msg("删除成功",{time: 10},function(){
               table.reload('test2',{data : oldData});
             });
           }
       )
     }

arrayObject.splice(index,howmany,item1,.....,itemX)