// struct Fenshu
// {
// public ArrayList al;
// }
// //结构体
// struct Student
// {
// public int no;
// public string name;
// public string sex;
// public Score fen;
// }
//结构体内部可以直接放置另一个结构体的数据类型
//struct Score
//{
// public double yu;
// public double shu;
// public double ying;
//}
//enum student:int
//{
// one=2,
// two=1,
// three,
// four=three
//}
//enum Weekday
//{
// Sunday,
// Monday,
// Tuesday,
// Wendsday,
// Thursday,
// Friday,
// Saturday
//}
//初始化结构体
//student st = new student();
//st.no = 20001;
//st.name = "张三";
//st.sex = "男";
//st.score = 80;
////将每个人的信息放进ArrayList集合中,面向对象的思想.
//ArrayList al = new ArrayList();
//al.Add(st);
//student st1 = new student();
//st1.no = 20002;
//st1.name = "李四";
//st1.sex = "女";
//st1.score = 60;
//al.Add(st1);
//ArrayList al = new ArrayList();
//Console.Write("请输入班级人数:");
//int a = int.Parse(Console.ReadLine());
//for (int i = 0; i < a;i++ )
//{
// student st = new student();
// Console.Write("请输入第{0}个人的学号:",i+1);
// st.no = int.Parse(Console.ReadLine());
// Console.Write("请输入第{0}个人的姓名:", i + 1);
// st.name =Console.ReadLine();
// Console.Write("请输入第{0}个人的性别:", i + 1);
// st.sex = Console.ReadLine();
// Console.Write("请输入第{0}个人的分数:", i + 1);
// st.score = int.Parse(Console.ReadLine());
// al.Add(st);
//}
//student st1 = (student)al[3];
//Console.WriteLine(st1.no);
//Console.WriteLine(st1.name);
//Console.WriteLine(st1.sex);
//Console.WriteLine(st1.score);
//Console.ReadLine();
//int a = 0;
//int b = 0;
//int c = 0;
//int[] piao = new int[20];
//for (int i = 0; i<20; i++)
//{
// Console.Write("请输入第{0}个人的投票:",i+1);
// piao[i]=int.Parse(Console.ReadLine());
//}
//for (int j = 0; j < 20; j++)
//{
// if(piao [j]==1)
// {
// a += 1;
// }
// else if (piao[j] == 2)
// {
// b += 1;
// }
// else if (piao[j] == 3)
// {
// c += 1;
// }
// else
// {
// Console.WriteLine("弃权!");
// }
//}
//double d = a > b ? a : b;
//double e = d > c ? d : c;
//if(e==a)
//{
// Console.WriteLine("张三当选为班长.");
//}
//else if(e==b)
//{
// Console.WriteLine("李四当选为班长.");
//}
//else
//{
// Console.WriteLine("王五当选为班长.");
//}
//Console.ReadLine();
Console.Write("请输入班级人数:");
int num = int.Parse(Console.ReadLine());
stu st = new stu();
ArrayList al = new ArrayList();
double sx = 0;
double yw = 0;
for (int i = 0; i < num; i++)
{
Console.Write("请输入第{0}个人的姓名:", i + 1);
st.name = Console.ReadLine();
Console.Write("请输入第{0}个人的语文成绩:", i + 1);
st.yu = double.Parse(Console.ReadLine());
Console.Write("请输入第{0}个人的数学成绩:", i + 1);
st.shu = double.Parse(Console.ReadLine());
Console.Write("请输入第{0}个人的英语成绩:", i + 1);
st.ying = double.Parse(Console.ReadLine());
yw += st.yu;
sx += st.shu;
al.Add(st);
}
Console.WriteLine("语文总分是:{0},数学平均分是:{1}", yw, sx / num);
stu st1 = new stu();
double[] yy = new double[num];
string[] mz = new string[num];
double[] sx1 = new double[num];
double[] yw1 = new double[num];
for (int m = 0; m < num; m++)
{
st1 = (stu)al[m];
yy[m] = st1.ying;
yw1[m] = st1.yu;
sx1[m] = st1.shu;
mz[m] = st1.name;
}
for (int j = 0; j < num; j++)
{
for (int k = j; k < num - 1; k++)
{
if (yy[j] < yy[k + 1])
{
double zhong = yy[j];
yy[j] = yy[k + 1];
yy[k + 1] = zhong;
string zhong1 = mz[j];
mz[j] = mz[k + 1];
mz[k + 1] = zhong1;
double zhong2 = yw1[j];
yw1[j] = yw1[k + 1];
yw1[k + 1] = zhong2;
double zhong3 = sx1[j];
sx1[j] = sx1[k + 1];
sx1[k + 1] = zhong3;
}
}
}
Console.WriteLine("英语最高分的同学是{0},他的语文分为{1},数学分为{2},英语分为{3}.英语最低分的同学是{4},他的语文分为{5},数学分为{6},英语分为{7}", mz[0], yw1[0], sx1[0], yy[0], mz[num - 1], yw1[num - 1], sx1[num - 1], yy[num - 1]);
Console.ReadLine();
struct car
{
public string chexinghao;
public int jiage;
public int zhoujv;
public double youhao;
}
static void Main(string[] args)
{
//定义一个结构体，存放关于车辆的几个信息
//将所有车的信息都放入集合中
//车型号 价格（W） 轴距 （mm） 油耗（L/100km）
//宝马320LI 38 2920 6.9
//宝马520LI 43 3108 7.2
//宝马730LI 89 3210 6.3
//奥迪A4L35TFSI 31 2869 6.2
//奥迪A6L30TFSI 43 3012 7.6
//奥迪A8L45TFSI 89 3122 8.1
//奔驰C200L 35 2920 6.1
//奔驰E260L 48 3014 6.7
//奔驰S320L 93 3165 8
//ArrayList al = new ArrayList();
//car c = new car();
//c.chexinghao = "宝马320LI";
//c.jiage = 38;
//c.zhoujv = 2920;
//c.youhao = 6.9;
//al.Add(c);
//car c1 = new car();
//c1.chexinghao = "宝马520LI";
//c1.jiage = 43;
//c1.zhoujv = 3108;
//c1.youhao = 7.2;
//al.Add(c1);
//car c2 = new car();
//c2.chexinghao = "宝马730LI";
//c2.jiage = 89;
//c2.zhoujv = 3210;
//c2.youhao = 6.3;
//al.Add(c2);
//car c3 = new car();
//c3.chexinghao = "奥迪A4L35TFSI";
//c3.jiage = 31;
//c3.zhoujv = 2869;
//c3.youhao = 6.2;
//al.Add(c3);
//car c4 = new car();
//c4.chexinghao = "奥迪A6L30TFSI";
//c4.jiage = 43;
//c4.zhoujv = 3012;
//c4.youhao = 7.6;
//al.Add(c4);
//car c5 = new car();
//c5.chexinghao = "奥迪A8L45TFSI ";
//c5.jiage = 89;
//c5.zhoujv = 3122;
//c5.youhao = 8.1;
//al.Add(c5);
//car c6 = new car();
//c6.chexinghao = "奔驰C200L";
//c6.jiage = 35;
//c6.zhoujv = 2920;
//c6.youhao = 6.1;
//al.Add(c6);
//car c7 = new car();
//c7.chexinghao = "奔驰E260L";
//c7.jiage = 48;
//c7.zhoujv = 3014;
//c7.youhao = 6.7;
//al.Add(c7);
//car c8 = new car();
//c8.chexinghao = "奔驰S320L";
//c8.jiage = 93;
//c8.zhoujv = 3165;
//c8.youhao = 8;
//al.Add(c8);
//现在想买一辆价格在50万以内的车，请给出车的型号以及价格
//car cc = new car();
//for (int i = 0; i < 9; i++)
//{
// cc = (car)al[i];
// if (cc.jiage < 50)
// {
// Console.WriteLine("车型号:{0},价格{1}万元.", cc.chexinghao, cc.jiage);
// }
//}
//买得起豪车，可是很关心油耗，给查一下油耗最低的三辆车的型号以及油耗情况
//for (int i = 0; i < 9; i++)
//{
// car cc = new car();
// for (int j = i; j < 8; j++)
// {
// cc = (car)al[i];
// car cc1 = new car();
// cc1 = (car)al[j + 1];
// if (cc.youhao < cc1.youhao)
// {
// object zhong = al[i];
// al[i] = al[j + 1];
// al[j + 1] = zhong;
// }
// }
//}
//car cc2 = (car)al[8];
//car cc3 = (car)al[7];
//car cc4 = (car)al[6];
//Console.WriteLine("油耗最低的三辆车是:{0}、{1}、{2}。油耗分别为:{3}L/100km、{4}L/100km、{5}L/100km。", cc2.chexinghao, cc3.chexinghao, cc4.chexinghao, cc2.youhao, cc3.youhao, cc4.youhao);
//买了车之后后座会经常坐人，所有我现在想要轴距大一些的车，前三名即可
//要列出车的型号以及车的轴距 ..
//for (int i = 0; i < 9; i++)
//{
// car cc = new car();
// for (int j = i; j < 8; j++)
// {
// cc = (car)al[i];
// car cc1 = new car();
// cc1 = (car)al[j + 1];
// if (cc.zhoujv < cc1.zhoujv)
// {
// object zhong = al[i];
// al[i] = al[j + 1];
// al[j + 1] = zhong;
// }
// }
//}
//car cc2 = (car)al[0];
//car cc3 = (car)al[1];
//car cc4 = (car)al[2];
//Console.WriteLine("轴距前三的车型号为:{0}、{1}、{2},轴距分别为{3}mm、{4}mm、{5}mm。", cc2.chexinghao, cc3.chexinghao, cc4.chexinghao, cc2.zhoujv, cc3.zhoujv, cc4.zhoujv);
//有钱就是任性，就买最贵的，不买最好的，直接调出来最贵的车的所有信息
//for (int i = 0; i < 9; i++)
//{
// car cc = new car();
//
// for (int j = i; j < 8; j++)
// {
//cc = (car)al[i];
// car cc1 = new car();
// cc1 = (car)al[j + 1];
// if (cc.jiage < cc1.jiage)
// {
// object zhong = al[i];
// al[i] = al[j + 1];
// al[j + 1] = zhong;
// }
// }
//}
//car cc2 = (car)al[0];
//Console.WriteLine("车型号{0},价格{1}万元,轴距{2}mm,油耗{3}L/100km.", cc2.chexinghao, cc2.jiage, cc2.zhoujv, cc2.youhao);
//本店有哪几款宝马车？？列出来所有信息
//car cc = new car();
//for (int i = 0; i < 9; i++)
//{
// cc = (car)al[i];
// if (cc.chexinghao.Contains("宝马"))
// {
// Console.WriteLine("车型号{0},价格{1}万元,轴距{2}mm,油耗{3}L/100km.", cc.chexinghao, cc.jiage, cc.zhoujv, cc.youhao);
// }
//}
//本店奔驰车里面油耗最低的是哪一个？所有信息
//for (int i = 0; i < 9; i++)
//{
// car cc = new car();
// for (int j = i; j < 8; j++)
// {
// cc = (car)al[i];
// car cc1 = new car();
// cc1 = (car)al[j + 1];
// if (cc.youhao > cc1.youhao)
// {
// object zhong = al[i];
// al[i] = al[j + 1];
// al[j + 1] = zhong;
// }
// }
//}
//for (int k = 0; k < 9; k++)
//{
// car cc2 = (car)al[k];
// if (cc2.chexinghao.Contains("奔驰"))
// {
// Console.WriteLine("奔驰车中油耗最低为{0},价格为{1}万元,轴距为{2}mm,油耗为{3}L/100km.", cc2.chexinghao, cc2.jiage, cc2.zhoujv, cc2.youhao);
// break;
// }
//}
//本店在售车辆中轴距最长的是不是奥迪？？
//for (int i = 0; i < 9; i++)
//{
// car cc = new car();
//
// for (int j = i; j < 8; j++)
// {
//cc = (car)al[i];
// car cc1 = new car();
// cc1 = (car)al[j + 1];
// if (cc.zhoujv < cc1.zhoujv)
// {
// object zhong = al[i];
// al[i] = al[j + 1];
// al[j + 1] = zhong;
// }
// }
//}
//car cc2 = (car)al[0];
//if (cc2.chexinghao.Contains("奥迪"))
//{
// Console.WriteLine("轴距最长的是奥迪.");
//}
//else
//{
// Console.WriteLine("轴距最长的不是奥迪.");
//}
//本店在售车辆轴距最长的是不是油耗最高的？？
//for (int i = 0; i < 9; i++)
//{
// car cc = new car();
// for (int j = i; j < 8; j++)
// {
// cc = (car)al[i];
// car cc1 = new car();
// cc1 = (car)al[j + 1];
// if (cc.zhoujv < cc1.zhoujv)
// {
// object zhong = al[i];
// al[i] = al[j + 1];
// al[j + 1] = zhong;
// }
// }
//}
//car cc2 = (car)al[0];
//for (int i = 0; i < 9; i++)
//{
// car cc = new car();
// cc = (car)al[i];
// for (int j = i; j < 8; j++)
// {
// car cc1 = new car();
// cc1 = (car)al[j + 1];
// if (cc.youhao < cc1.youhao)
// {
// object zhong = al[i];
// al[i] = al[j + 1];
// al[j + 1] = zhong;
// }
// }
//}
//car cc3 = (car)al[0];
//if (cc3.chexinghao == cc2.chexinghao)
//{
// Console.WriteLine("轴距最长的车是油耗最高的车.");
//}
//else
//{
// Console.WriteLine("轴距最长的车不是油耗最高的车.");
//}
//奔驰车中轴距最长的是哪一辆？？
//for (int i = 0; i < 9; i++)
//{
// car cc = new car();
// for (int j = i; j < 8; j++)
// {
// cc = (car)al[i];
// car cc1 = new car();
// cc1 = (car)al[j + 1];
// if (cc.zhoujv < cc1.zhoujv)
// {
// object zhong = al[i];
// al[i] = al[j + 1];
// al[j + 1] = zhong;
// }
// }
//}
//for (int k = 0; k < 9; k++)
//{
// car cc2 = (car)al[k];
// if (cc2.chexinghao.Contains("奔驰"))
// {
// Console.WriteLine("奔驰车中轴距最长为{0}.", cc2.chexinghao);
// break;
// }
//}
//就只喜欢宝马，可是没多少钱，请列出来现有车辆中最便宜的宝马车的所有信息
//for (int i = 0; i < 9; i++)
//{
// car cc = new car();
// for (int j = i; j < 8; j++)
// {
// cc = (car)al[i];
// car cc1 = new car();
// cc1 = (car)al[j + 1];
// if (cc.jiage > cc1.jiage)
// {
// object zhong = al[i];
// al[i] = al[j + 1];
// al[j + 1] = zhong;
// }
// }
//}
//for (int k = 0; k < 9; k++)
//{
// car cc2 = (car)al[k];
// if (cc2.chexinghao.Contains("宝马"))
// {
// Console.WriteLine("宝马车中最便宜为{0},价格为{1}万元,轴距为{2}mm,油耗为{3}L/100km.", cc2.chexinghao, cc2.jiage, cc2.zhoujv, cc2.youhao);
// break;
// }
//}
//Console.ReadLine();