ASP.NET Core 3.x RESTful API学习记录--ActionResult<T>

返回数据的几种方式

1.

        [HttpGet]
        public IEnumerable<User> GetUsers()
        {
           return users.Where(x => x.Age == 18).ToList();
        }

2.

     [HttpGet]
        public IActionResult GetUsers()
        {
            var user= users.Where(x => x.Age == 18).ToList();
            return Ok(user);
        }

3.

    [HttpGet]
        public ActionResult<IEnumerable<User>> GetUsers()
        {
            var user= users.Where(x => x.Age == 18).ToList();
            return user;
        }

知识来源草根专栏 感谢杨旭大佬