依赖注入asp.net mvc

I have a service class :

我有一个服务类：

public class MyService : IService
{
    private IRepoA repoA;
    private IRepoB repoB;

    public MyService(IRepoA repoA,IRepoB repoB)
    {
        this.repoA=repoA;
        this.repoB=repoB;
    }
}
public cl