[x] bug report => search github for a similar issue or PR before submitting
[ ] feature request
[ ] support request => Please do not submit support request here, instead see https://github.com/angular/angular/blob/master/CONTRIBUTING.md#question

search(key: string) {
  const params = new URLSearchParams()
  params.set('key', key)
  params.set('jsonpCallback', 'JSONP_CALLBACK')
  return this.jsonp.get('https://c.y.qq.com/splcloud/fcgi-bin/smartbox_new.fcg?' + params)
  .toPromise()
  .then(res => {
    console.log(res)
    return []
  })
}