<form method="post">
    <button type="submit" asp-page-handler="Submit">提交</button>
    <button type="submit" asp-page-handler="Report">上报</button>
</form>

public class IndexModel : PageModel
{
    public async Task<IActionResult> OnPostSubmitAsync()
    {
        // 提交逻辑
        return Page();
    }

    public async Task<IActionResult> OnPostReportAsync()
    {
        // 上报逻辑
        return Page();
    }
}