c#？？？？？？？？

Question

          各位大侠。。
    我想输入姓名，分数后，然后打印出来；
   接下来求平均分，能够根据平均分来排名。   
       
  string[] lin =new string[3] {"英语","数学","c#"};
            for (int i = 0; i < 5; i++)
            {
                Console.WriteLine("请输入您的姓名-------：  {0}", i + 1);
                name[i] = Convert.ToString(Console.ReadLine());
                for (int j = 0; j < 3; j++)
                {
                    Console.WriteLine("分别输入英语成绩：{0}",lin[j]);//引入课程；
                    num[i, j] = Convert.ToInt32(Console.ReadLine());//引入分数；                }
            }

Answer 1

我已经计算出平均分来了；
  但不知道怎样利用平均分来排名；   
for (int i = 0; i < 5; i++)
            {
               
                for (int j = 0; j < 3; j++)
                {                    sum[i] += num[i, j];
                }                Console.WriteLine();            }
                         //接下来求平均分
            
            Console.WriteLine("姓名----英语--------数学--------c#--------平均分-----");
            for (int i = 0; i < 5; i++)
            {
                
                Console.Write("{0,-10}", name[i]);//输出姓名；
                
                for (int j = 0; j < 3; j++)
                {
                    Console.Write("{0,-10}",num[i,j]);
                 
                
                }                Console.Write("{0,-20}", sum[i] / 3);                Console.WriteLine();
             }
            //接下来是排名的过程；

Answer 2

 num[i, j] 为5行4列，最后一列保存平均分

Answer 3

using System;
using System.Collections.Generic;
using System.Text;namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            IList<Student> lstStudents = new List<Student>();            for (int i = 0; i < 3; i++)
            {
                Student student = new Student();
                Console.WriteLine("请输入姓名：");
                student.Name = Console.ReadLine();
                Console.WriteLine("请输入英语成绩：");
                student.English = double.Parse(Console.ReadLine());
                Console.WriteLine("请输入数学成绩：");
                student.Math = double.Parse(Console.ReadLine());
                Console.WriteLine("请输入C#成绩：");
                student.CSharp = double.Parse(Console.ReadLine());
                student.Average = student.CaclAverage();//计算平均分
                lstStudents.Add(student);
            }            foreach (Student stu in lstStudents)
            {
                Console.WriteLine("姓名：" + stu.Name + "；英语：" + stu.English + 
                    "；数学：" + stu.Math + "；C#：" + stu.CSharp + "；平均分：" + stu.Average);
            }            //按平均分降序排序
            for (int i = 0; i < lstStudents.Count - 1; i++)
            {
                for (int j = 1; j < lstStudents.Count; j++)
                {
                    Student tempStudent = null;
                    if (lstStudents[i].Average < lstStudents[j].Average)
                    {
                        tempStudent = lstStudents[j];
                        lstStudents[j] = lstStudents[i];
                        lstStudents[i] = tempStudent;
                    }
                }
            }            foreach (Student stu in lstStudents)
            {
                Console.WriteLine("姓名：{0}；平均分：{1}", stu.Name, stu.Average);
            }            Console.ReadLine();
        }    }    class Student
    {
        public string Name;
        public double English;
        public double Math;
        public double CSharp;
        public double Average;//平均分        //计算平均分
        public double CaclAverage()
        {
            //实际应用中注意检查数据是否合理
            double dSum = English + Math + CSharp;
            return dSum / 3;
        }        public override string ToString()
        {
            return Name;
        }
    }
}

Answer 4

实现ICoparable接口实现类型按照自己定义的比较方式,顺序排列 ,此处实现按平均分由高到低排列
public class Student : IComparable  
    {
        private string _name;
        private int _math;
        private int _chinese ;
        private int _cshape ;
        private double _average ;
        public Student(string name, int m, int c, int cs)
        {
            this._name = name;
            this._math = m;
            this._chinese = c;
            this._cshape = cs;
            this._average = (m + c + cs) / 3;
        }
        public int CompareTo (object o) //此处实现排序规则,
        {
            Student st = (Student)o;
            if (st._average > this._average)
                return 1;
            else if (st._average == this._average)
                return 0;
            else
                return -1;
        }
        public override string ToString()
        {            
            return this._name + "\t\t" + this._average.ToString();
        }        
    } // using System.Collections;
class Program
    {
        static void Main(string[] args)
        {
            ArrayList studentlist = new ArrayList(5); //使用ArrayList 需添加 , using System.Collections;
            studentlist.Add(new Student("小王", 90, 80, 85));
            studentlist.Add(new Student("小于", 80, 85, 73));
            studentlist.Add(new Student("小丽", 95, 90, 85));
            studentlist.Add(new Student("李", 80, 60, 70));
            studentlist.Add(new Student("陈", 80, 85, 92));
            foreach (Student s in studentlist )
            {
                Console.WriteLine (s.ToString());
            }
            Console.WriteLine("-------------------------------------------");
            studentlist.Sort();
            foreach (Student s in studentlist)
            {
                Console.WriteLine(s.ToString());
            }
            Console.ReadLine();            
        }
    }

Answer 5

高手何其多啊。
其实你去看看msdn最好了。