class Program

    {

        static void Main(string[] args)

        {

            var student = new Student() { Name = "Jack", Address = "Lingbi County", City = "Zhangyuan" };

            var studentName = GetModelValue("Name", student);

            var studentCity = SetModelValue("City", "Wuhan", student);

            Console.WriteLine($"Hello World! {student.Name}, {student.City}");

        }

        /// <summary>

        /// 获取类中的属性值

        /// </summary>

        /// <param name="FieldName"></param>

        /// <param name="obj"></param>

        /// <returns></returns>

        public static string GetModelValue(string FieldName, object obj)

        {

            try

            {

                Type Ts = obj.GetType();

                object o = Ts.GetProperty(FieldName).GetValue(obj, null);

                string Value = Convert.ToString(o);

                if (string.IsNullOrEmpty(Value)) return null;

                return Value;

            }

            catch

            {

                return null;

            }

        }

        /// <summary>

        /// 设置类中的属性值

        /// </summary>

        /// <param name="FieldName"></param>

        /// <param name="obj"></param>

        /// <returns></returns>

        public static bool SetModelValue(string FieldName, string Value, object obj)

        {

            try

            {

                Type Ts = obj.GetType();

                object v = Convert.ChangeType(Value, Ts.GetProperty(FieldName).PropertyType);

                Ts.GetProperty(FieldName).SetValue(obj, v, null);

                return true;

            }

            catch

            {

                return false;

            }

        }

        public class Student

        {

            public string Name { get; set; }

            public string Address { get; set; }

            public string City { get; set; }

        }

    }