public selectedSubject: Subject<{
id: string,
music: string,
title: string,
user_tag_id: string,
user_token: string
}> = new Subject();
改 public selectedSubject: Subject<any> = new Subject();
如果返回对象数据结构不一致 本地汇报内存溢出
this.audioService.selectedSubject.next({
...music
});