基于bootstrap-datetimepicker.js不支持IE8的快速解决方法

if (!Array.prototype.indexOf)

    Array.prototype.indexOf = function (elt /*, from*/) {
      var len = this.length >>> 0;

      var from = Number(arguments[1]) || 0;
      from = (from <0)
          &＃63; Math.ceil(from)
          : Math.floor(from);
      if (from <0)
        from += len;

      for (; from