解决layui2.6表格不支持导出

k.exportFile = function (e, t, i) {
var d, a, l, c, r = this, s = (t = t || k.clearCacheKey(k.cache[e]),
y.that[e]), n = y.config[e] || {}, o = {
csv: "text/csv",
xls: "application/vnd.ms-excel"
}[i = i || "csv"], u = document.createElement("a");
// if (x.ie)
// return p.error("IE_NOT_SUPPORT_EXPORTS");

        var dString = (d = [],
            a = [],
            l = [],
            c = {},
            layui.each(t, function (l, n) {
                var o = [];
                "object" == typeof e ? (layui.each(e, function (e, t) {
                    0 == l && d.push(t || "")
                }),
                    layui.each(k.clearCacheKey(n), function (e, t) {
                        o.push('"' + (t || "") + '"')
                    })) : k.eachCols(e, function (e, t) {
                    var i, a;
                    t.field && "normal" == t.type && (t.hide ? 0 == l && (c[t.field] = !0) : (i = n[t.field],
                        a = r.layBody.find('tr[data-index="' + l + '"]>td'),
                    null == i && (i = ""),
                    0 == l && d.push(t.title || ""),
                        o.push('"' + m.call(s, {
                            item3: t,
                            content: i,
                            tplData: n,
                            text: "text",
                            obj: s.commonMember.call(a.eq(0), {
                                td: function (e) {
                                    return a.filter('[data-field="' + e + '"]')
                                }
                            })
                        }) + '"')))
                }),
                    a.push(o.join(","))
            }),
            layui.each(r.dataTotal, function (e, t) {
                c[e] || l.push(t)
            }),
        d.join(",") + "\r\n" + a.join("\r\n") + "\r\n" + l.join(","));
        u.href = "data:" + o + ";charset=utf-8,\ufeff" + encodeURIComponent(dString);
        if (x.ie) {
            var meta = {csv: "text/csv", xls: "application/vnd.ms-excel"}[i];// meta格式
            var types = i;
            navigator.msSaveBlob(new Blob(['\ufeff' + dString], {type: meta + ';charset=utf-8;'}), '导出文件.' + types)
        } else {
            u.download = (n.title || "table_" + (n.index || "")) + "." + i,
                document.body.appendChild(u),
                u.click(),
                document.body.removeChild(u)
        }

    }