15、结构体练习

 具体要求：

A．从控制台循环录入任意个同学的信息跟成绩（学号，姓名，C语言分数）使用结构体    

B．在控制台打印本班的总分和平均分，并打印本班最高分、最低分的学生信息

C．按成绩高低打印本班成绩册并排出名次

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace jiegouti2
{
    class Program
    {
        struct student
        {
            public string xuehao;
            public string xingming;
            public decimal fenshu;
        }
        static void Main(string[] args)
        {
            Console.WriteLine("欢迎使用学生分数管理系统！");
            Console.WriteLine("请输入学生人数");
            int shu = int.Parse(Console.ReadLine());
            student[] shuzu = new student[shu];
            decimal sum = 0;
            for (int m = 0; m < shu; m++)
            {
                Console.WriteLine("请输入第{0}个学生的
学号、姓名、C语言分数", m + 1);
                string a = Console.ReadLine();
                string[] b = a.Split(new char[] { '	' });
                shuzu[m].xuehao = b[0];
                shuzu[m].xingming = b[1];
                shuzu[m].fenshu = decimal.Parse(b[2]);
                sum += shuzu[m].fenshu;
            }

            for (int m = 0; m < shu-1; m++)
            {
                for (int n = m+1; n < shu; n++)
                {
                    if (shuzu[m].fenshu < shuzu[n].fenshu)
                    {
                        student zhong = new student();
                        zhong = shuzu[n];
                        shuzu[n] = shuzu[m];
                        shuzu[m] = zhong;
                    }
                }
            }

            Console.WriteLine("总分是：{0}", sum);
            Console.WriteLine("平均分是：{0}", sum / shu);
            Console.WriteLine("最高分是学号{0}姓名{1}的{2}分", shuzu[0].xuehao.ToString(), shuzu[0].xingming.ToString(), shuzu[0].fenshu.ToString());
            Console.WriteLine("最低分是学号{0}姓名{1}的{2}分", shuzu[shu - 1].xuehao.ToString(), shuzu[shu - 1].xingming.ToString(), shuzu[shu - 1].fenshu.ToString());

            Console.WriteLine("降序排列为：
名次	学号	姓名	分数");
            for (int m = 0; m < shu; m++)
            {
                Console.WriteLine((m+1)+"	"+shuzu[m].xuehao + "	" + shuzu[m].xingming + "	" + shuzu[m].fenshu);
            }
            Console.ReadLine();
        }
    }
}

效果如下图所示：