(function () {
    var surl = "";
    var nw = window.open();
    var i = 100, j = 200;
    function op() {
      surl = "https://www.data-site.com/data/FileDownload/?fileId=" + i;
        console.log(surl);
        nw.location = surl;
        i++;
        if (i<j)
            setTimeout(op, 5000);
    }
    op();
})();

注：本文参考了 https://bbs.csdn.net/topics/392177700