/// <summary>
        /// 开始行数
        /// </summary>
        [Range(1, int.MaxValue, ErrorMessage = "Page必须大于0")]
        public int Page { get; set; }

配置  [Required]、[StringLength]、[RegularExpression] 和 [Range] 验证特性

 services.Configure<ApiBehaviorOptions>(options =>
            {
                options.InvalidModelStateResponseFactory = actionContext =>
                {
                    //获取验证失败的模型字段 
                    var errors = actionContext.ModelState
                        .Where(s => s.Value != null && s.Value.ValidationState == ModelValidationState.Invalid)
                        .SelectMany(s => s.Value!.Errors.ToList())
                        .Select(e => e.ErrorMessage)
                        .ToList();

                    // 统一返回格式
                    var result = new CommonResult()
                    {
                        ErrCode = StatusCodes.Status400BadRequest.ToString(),
                        ErrMsg = "数据验证不通过！," + string.Join(",", errors),
                        Success = false
                    };
                    return new BadRequestObjectResult(result);
                };
            });

在starup.cs里自定义格式