这是我的演员阵列：
['Elvis','Jane','Frances']
如何在HttpClient中的查询字符串中传递此数组？
我试着用：
1)
let params = new HttpParams();
params = Params.append('actors[]',['Elvis','Frances']);
this.http.get(url,{ params: Params });
2)
let params = new HttpParams().set('actors[]',{ params: Params });
3)
let Params = new HttpParams();
Params = Params.append('actors[]','Jane');
Params = Params.append('actors[]','Elvis');
Params = Params.append('actors[]','Frances');
this.http.get(url,{ params: Params });
1和2不起作用,因为打字稿给出：
[ts] Argument of type ‘string[]’ is not assignable to parameter of type ‘string’.
3只发送一个项目’actors []’：’Frances’
