watch监听$route

watch: {
    $route: {
        //$route发生变化时执行下面的函数
      handler: function (to) {
        console.log(to, 'to')
        if (to.query.auth_code) {
          this.getStaffInfo(to.query.auth_code)
        }
        const query = to.query
        console.log(query, 'query')
        if (query) {
          this.redirect = query.redirect
          this.otherQuery = this.getOtherQuery(query)
          console.log(this.redirect, 'redirect')
          console.log(this.otherQuery, 'otherQuery')
        }
      },
      immediate: true//是否在初始化时就监听变化
    }