public class Students    {        //创建对像时使用        public Students(string name, int age, char gender, int englist, int chinese, int math)        {            this.Name = name;            this.Age = age;            this.Gender = gender;            this.Englist = englist;            this.Chinese = chinese;            this.Math = Math;        }        public Students(string name, int age)        {            this.Name = name;            this.Age = age;        }        //我是析构函数，结束时运行        ~Students()        {            Console.WriteLine("我是析构函数");        }        private string _name;        public string Name        {            get { return _name; }            set { _name = value; }        }        private int _age;        public int Age        {            get { return _age; }            set            {                if (value < 0 || value > 100)                {                    value = 0;                } _age = value;            }        }        private char _gender;        public char Gender        {            get {                if (_gender != '男' && _gender != '女')                {                _gender='男';                }                return _gender;            }            set { _gender = value; }        }        private int _chinese;        public int Chinese        {            get { return _chinese; }            set { _chinese = value; }        }        private int _math;        public int Math        {            get { return _math; }            set { _math = value; }        }        private int _english;        public int Englist        {            get { return _english; }            set { _english = value; }        }        public void SayHello()        {            Console.WriteLine("我叫{0}，我是{1}性，我今年{2}岁", this.Name, this.Gender, this.Age);        }        public void ShowScore()        {            Console.WriteLine("我叫{0},我的总成绩是{1},我的平均成绩是{2}", this.Name, this.Chinese + this.Math + this.Englist, (this.Chinese + this.Math + this.Englist) / 3);        }