DataTable按钮，排序，单元格颜色

function init_ceph_table(data, elementid) {
            var table = $('#' + elementid).DataTable(
                {
                    data: data,
                    columns: [
                        {data: "host"},
                        {data: "disk_slot"},
                        {data: "disk_score"},
                        {data: "disk_media_error_count"},
                        {data: "disk_other_error_count"},
                        {data: "disk_pred_fail_count"},
                        {data: "disk_reallocated_sector_count"},
                        {data: "volume"},
                        {data: "osd_state"}
                    ],
                    "columnDefs": [{
                        "targets": 2,
                        "createdCell": function (td, cellData, rowData, row, col) {
                            if (cellData <100)
                                    $(td).css('color', 'red');
                        }
                    }],
                    buttons: [
                        {
                            extend: 'copy',
                            text: '复制'
                        },
                        {
                            extend: 'excel',
                            text: '导出excel'
                        }
                    ],
                    "order": [[2, "asc"]],
                    paging: false,
                    "language": {
                        "sProcessing": "处理中...",
                        "sLengthMenu": "显示 _MENU_ 项结果",
                        "sZeroRecords": "没有匹配结果",
                        "sInfo": "显示第 _START_ 至 _END_ 项结果，共 _TOTAL_ 项",
                        "sInfoEmpty": "显示第 0 至 0 项结果，共 0 项",
                        "sInfoFiltered": "(由 _MAX_ 项结果过滤)",
                        "sInfoPostFix": "",
                        "sSearch": "搜索:",
                        "sUrl": "",
                        "sEmptyTable": "表中数据为空",
                        "sLoadingRecords": "载入中...",
                        "sInfoThousands": ",",
                        "oPaginate": {
                            "sFirst": "首页",
                            "sPrevious": "上页",
                            "sNext": "下页",
                            "sLast": "末页"
                        },
                        "oAria": {
                            "sSortAscending": ": 以升序排列此列",
                            "sSortDescending": ": 以降序排列此列"
                        }
                    }
                }
            );
            table.buttons().container()
                .appendTo($('.col-sm-6:eq(0)', table.table().container()));
        }

　

表头在table中直接定义