POST请求不会从角度触发

我确保数据库功能在ASP.net中与swagger一起工作

export class AlloutProvider {
    url: string;
    constructor(private _http: HttpClient) {
        this.url = "http://localhost:33324/api/v1"
    };

    postTeam(team: Team) {
        console.log(this.url + "game/team")
        console.log(JSON.stringify(team))
        return this._http.post(this.url + "game/team", JSON.stringify(team));
    }
}