class Student
    {
        public double _chineseScore;
        public double _mathScore;
        public double _englishScore;
        public string _name;
        public char _chineseLevel;
        public char _mathLevel;
        public char _englishLevel;

        public Student()
        {

        }

        public
 
 Student(string _name, double _chineseScore, double _mathScore, double _englishScore)
        {
            this._chineseScore = _chineseScore;
            this._mathScore = _mathScore;
            this._englishScore = _englishScore;
            this._name = _name;
        }

        public void ShowInformation
 
()
        {
            Console.WriteLine("語文{0}分，數學{1}分，英語{2}分", _chineseScore, _mathScore, _englishScore);
        }
        public void ShowStudentInfo()
        {
            Console.WriteLine("{0}:\t語文{1}分\t數學{2}分\t英語{3}分\t總分為：{4}\t平均分為：{5}", _name, _chineseScore, _mathScore, _englishScore, SumScore(), Average());
        }

        public
 
 char Level(double score)
        {
            switch ((int)score / 10)
            {
                case 10:
                    return 'A';
                case 9:
                    return 'A';
                case 8:
                    return 'B';
                case 7:
                    return 'C';
                case 6:
                    return 'D';
                case 5:
                case 4:
                case 3:
                case 2:
                case 1:
                    return 'E';
                default:
                    return ' ';
            }
        }

        public double SumScore()
        {
            return _chineseScore + _mathScore + _englishScore;
        }

        public double Average()
        {
            return SumScore() / 3;
        }
    }

 class Program
    {
        static void Main(string[] args)
        {
            Random r = new Random();
            Student[] stu = new Student[10];
            for (int i = 0; i < stu.Length; i++)
            {
                stu[i] = new Student("小茗" + i , r.Next(50, 101), r.Next(70, 101), r.Next(80, 101));
            }
            Show(stu);
            Console.ReadKey();
        }
    }