async getUserlist(){
      // 需要授权的Api，必须在青丘头中使用Authorization 字段提供token令牌
      const AUTH_TOKEN=localStorage.getItem("token");
      this.$http.defaults.headers.common['Authorization'] = AUTH_TOKEN;
      const res=await this.$http.get(`users?query=${this.query}&pagenum=${this.pagenum}&pagesize=${this.pagesize}`)
      console.log(res)
    }