我已经实现了一个由两个实体Student和Department组成的核心网络api，并实现了一对多关系，即一个Department可以有多个学生。

我创建了一个名为 DepartmentStudentsresponse

DepartmentStudentsresponse.cs

using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;

namespace Students.Models
{
    public class DepartmentStudentsresponse
    {
        public Department department { get; set; }
        public List<Student> students { get; set; }
    }
}

我想实现 GetStudents（int id）方法，在该方法中将提供特定的部门ID，并且应该返回其中包含listOfstudents的部门。

在 GetStudents（int id）方法中，departmentStudents.department = department.Result;，departmentStudents.students = listOfStudents.Result;为什么需要.Result？没有.Result，我该如何实现呢？

DeparmentController.cs GetStudents（int id）

[HttpGet("{id}")]
//[Route("DepartmentWithStudent")]
public async Task<actionResult<Student>> GetStudents(int id)
{
    DepartmentStudentsresponse departmentStudents = new DepartmentStudentsresponse();

    var department =  _context.Departments.FindAsync(id);
    if (department != null)
    {
        departmentStudents.department = department.Result;

        var listOfStudents = _context.Students.Where(x => x.DepartmentId == id).ToListAsync();
        departmentStudents.students = listOfStudents.Result;
        //return departmentStudents;
    }
    else
    {
        return NotFound();
    }
 }