Vue3.0中获取路由参数值

/**
  * @description: 获取路由参数值
  * @param {*}
  * @return {*}
  */
  const getQueryString = (name) => {
    var reg = new RegExp("(^|&)" + name + "=([^&]*)(&|$)", "i");
    var r = window.location.search.substr(1).match(reg);
    if (r != null) return unescape(r[2]);
    return null;
  }