public class Startup
{
    public Startup(IConfiguration configuration)
    {
        Configuration = configuration;
    }public IConfiguration Configuration { get; }

    // This method gets called by the runtime. Use this method to add services to the container.
    public void ConfigureServices(IServiceCollection services)
    {
        services.AddSpaStaticFiles(configuration =>
        {
　　　　　　　//指定单页应用文件路径地址
            configuration.RootPath = "wwwroot/dist";
        });
　　　　 //……
    }

    // This method gets called by the runtime. Use this method to configure the HTTP request pipeline.
    public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
    {
        app.UseStaticFiles();
　　　　　//
        app.UseSpaStaticFiles();
        app.UseEndpoints(endpoints =>
        {
            endpoints.MapControllers();
　　　　　　　//绑定路由；必须设置
            endpoints.MapControllerRoute(name: "default", pattern: "{controller}/{action=Index}/{id?}");
        });
        app.UseSpa(configuration =>{});
    }
}