var url = constants.api.abnormalAccount.exportAbnormalList + '?' + $.param(postData);        var aLink = document.createElement("a");        aLink.download = '';        aLink.href = url;        if (document.createEvent) {            var e = document.createEvent('MouseEvents');            e.initEvent('click', true, true);            aLink.dispatchEvent(e);        } else if (a.fireEvent) {            aLink.fireEvent('onclick');        };