禁用自带的跳转，并添加锚点

/*
* 获取带后缀链接
* @param href 链接
* @param type 0:导航,1:页面二级菜单
*/
function getNewHref(href = "", type = 0) {
    let href_arr;
    href_arr = [
        "yejianjie",
        "iyewenhua",
        "zhijiagou",
        "anlicheng",
        "iaruwomen",
        "anxiwomen",
    ];
    if (href_arr.includes(href.substring(href.length - 14, href.length - 5))) {
      const regex = /\/(\w+)\.html/;
      const match = href.match(regex);
      return href + "#" + match[1];
    } else {
      return href;
    }
}
// 导航
$(".menu_down a").on("click", function (event) {
    let href = $(this).attr("href");
    let new_href = getNewHref(href);
    // console.log(new_href);return false;
    window.location.href = new_href;
    event.preventDefault();
});