如何从控制器代码中调用web asp.net mvc Core

public IActionResult MyAction()
{
    // 在这里编写你的代码逻辑
    return View();
}

public IActionResult MyAction()
{
    ViewData["Message"] = "Hello, World!";
    return View();
}

<h1>@ViewData["Message"]</h1>

public void Configure(IApplicationBuilder app, IWebHostEnvironment env)
{
    // 其他配置代码...

    app.UseRouting();

    app.UseEndpoints(endpoints =>
    {
        endpoints.MapControllerRoute(
            name: "default",
            pattern: "{controller=Home}/{action=Index}/{id?}");
    });
}