特定场景下的数据格式化（根据后台控制格式化的方式）

<script id="bdt_list" type="text/html">
<div class="row col-xs-12">
    <div class="box box-body table-responsive no-padding">
        <table id="tb_list" class="table table-striped dataTable">
            <thead>
                <tr>
                    <%for(var item_title in wordbook){ %>
                        <% var title = getTitle(wordbook[item_title]);  %>
                        <th width="auto"><%:=title; %></th>
                    <%}%>
                </tr>
            </thead>
            <tbody id="tb_tbody">
            <%if(data!=null&&data.length>0){%> 
            <%for(var i=0;i<data.length;i++){%>
            <% var item = data[i]; %>
            <tr data-index="<%=i%>" >
            <%for(var item_title in wordbook){ %>
                <% var rule = getRule(wordbook[item_title]); %>
                <td style="word-break: break-all;"><%:=formatN(item[item_title],rule); %></td>
            <%}%>
            </tr>
            <%}}%>
            </tbody>
        </table>
    </div>
</div>
</script>

// 展示搜索返回的数据
showList: function(ret) {
    var that = this;

    var listData = JSON.parse(ret);
    var bt = baidu.template;
    var chtml = bt('bdt_list', listData.data);
    $('#div_loading').hide();
    $('#div_list').html(chtml);
 /* 
 *   格式化数据开始
 */

/* 通用格式化，number：传入的值 rule：规则 */
formatN: function(number, rule) {
    var number = number.toString();
    if (!isNaN(number)) {
        if (rule == 1) {
            return number;
        } else {
            /* 将格式化规则分类 */
            var regFl = /\(.\)$/;
            var rule_d = regFl.exec(rule)[0].charAt(1);
            if (isNaN(rule_d)) {
                /* 日期 */
                return number.substr(0, 4) + rule_d + number.substr(4, 2) + rule_d + number.substr(6, 2);
            } else if (rule_d == 0) {
                return parseInt(number).toString().replace(/(\d{1,3})(?=(\d{3})+$)/g, '$1,');
            } else {
                /* 格式化数字，千分位加分隔符，保留小数 */
                var right = '';
                var reg = /\./;
                if (!reg.test(number)) {
                    var left = parseInt(number).toString().replace(/(\d{1,3})(?=(\d{3})+$)/g, '$1,');
                    for (var i = 0; i < rule_d; i++) {
                        right += '0';
                    }
                    return left + '.' + right;
                } else {
                    return Number(number).toFixed(rule_d).replace(/(\d)(?=(\d{3})+\.)/g, '$1,');
                }
            }
        }
    } else {
        return number;
    }
},
/* 获取title */
getTitle: function(param) {
    var regT = /\,formatN/;
    if (regT.test(param)) {
        return param.split(',')[0];
    } else {
        return param;
    }
},
/* 获取格式化规则 */
getRule: function(param2) {
    var regT2 = /\,formatN/;
    if (regT2.test(param2)) {
        return param2.split(',')[1];
    } else {
        return 1;
    }
},

/* 
 *   格式化数据结束
 */

{
    "state": true,
    "data": {
        "key": "idb:act:bonusgroup",
        "data": [{
            "k0": 20180625,
            "k1": "Centroids: 0, 1, 2, 3, 4<br>",
            "k2": "Centroids: 1, 3, 6, 9, 26<br>",
            "k3": "Centroids: 1, 3, 6, 9, 26<br>"
        }],
        "wordbook": {
            "k0": "日期,formatN(-)",
            "k1": "金额,formatN(2)",
            "k2": "数字，formatN(0)",
            "k3": "其他"
        }
    }
}