c#部分---结构体再利用；

//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

//所有在售车辆中最便宜的

 //ArrayList al = new ArrayList();
            //pinpai a1 = new pinpai(); a1.name = "宝马320Li"; a1.price = 38; a1.zhouju = 2920; a1.youhao = 6.9;
            //al.Add(a1);
            //pinpai a2 = new pinpai(); a2.name = "宝马520Li"; a2.price = 43; a2.zhouju = 3108; a2.youhao = 7.2;
            //al.Add(a2);
            //pinpai a3 = new pinpai(); a3.name = "宝马730Li"; a3.price = 89; a3.zhouju = 3210; a3.youhao = 6.3;
            //al.Add(a3);
            //pinpai a4 = new pinpai(); a4.name = "奥迪A4L35TFSI"; a4.price = 31; a4.zhouju = 2869; a4.youhao = 6.2;
            //al.Add(a4);
            //pinpai a5 = new pinpai(); a5.name = "奥迪A6L35TFSI"; a5.price = 43; a5.zhouju = 3012; a5.youhao = 7.6;
            //al.Add(a5);
            //pinpai a6 = new pinpai(); a6.name = "奥迪A8L35TFSI"; a6.price = 89; a6.zhouju = 3122; a6.youhao = 8.1;
            //al.Add(a6);
            //pinpai a7 = new pinpai(); a7.name = "奔驰C200L"; a7.price = 35; a7.zhouju = 2920; a7.youhao = 6.1;
            //al.Add(a7);
            //pinpai a8 = new pinpai(); a8.name = "奔驰E260L"; a8.price = 48; a8.zhouju = 3014; a8.youhao = 6.7;
            //al.Add(a8);
            //pinpai a9 = new pinpai(); a9.name = "奔驰S320L"; a9.price = 93; a9.zhouju = 3165; a9.youhao = 8;
            //al.Add(a9);

            //for (int i = 0; i < 8; i++)
            //{
            //    for (int j = i + 1; j < 9; j++)
            //    {
            //        pinpai a = (pinpai)al[i];
            //        pinpai b = (pinpai)al[j];
            //        if (a.price > b.price)
            //        {
            //            object zhong = al[i];
            //            al[i] = al[j];
            //            al[j] = zhong;
            //        }
            //    }
            //}
            //pinpai aa = (pinpai)al[0];
            //Console.WriteLine("最便宜的是{0}，价格{1}，轴距{2}，油耗{3}。", aa.name, aa.price, aa.zhouju, aa.youhao);
            //Console.WriteLine("--------------------------------------------------------------------");

//求宝马中最便宜的车型是什么，所有信息列出

 //for (int i = 0; i < 9; i++)
            //{
            //    pinpai baomacheap = (pinpai)al[i];
            //    if (baomacheap.name.Contains("宝马"))
            //    {
            //        Console.WriteLine("宝马车中最便宜的是{0}，价格{1}，轴距{2}，油耗{3}。", baomacheap.name, baomacheap.price, baomacheap.zhouju, baomacheap.youhao);
            //        break;
            //    }
            //}

//选个轴距最长的

//Console.WriteLine("--------------------------------------------------------------------");
//for (int i = 0; i < 8; i++)
//{
// for (int j = 1; j < 9; j++)
// {
// pinpai a = (pinpai)al[i];
// pinpai b = (pinpai)al[j];
// if (a.zhouju < b.zhouju)
// {
// object zhong = al[i];
// al[i] = al[j];
// al[j] = zhong;
// }
// }
//}
//pinpai cc = (pinpai)al[0];
//Console.WriteLine("轴距最长的车是{0}，价格{1}，轴距{2}，油耗{3}。", cc.name, cc.price, cc.zhouju, cc.youhao);
//Console.WriteLine("--------------------------------------------------------------------");

//选个轴距最长的，必须是奔驰

//for (int i = 0; i < 9; i++)
//{
// pinpai zhouju = (pinpai)al[i];
// if (zhouju.name.Contains("奔驰"))
// {
// Console.WriteLine("奔驰车中轴距最长的是{0}，价格{1}，轴距{2}，油耗{3}。", zhouju.name, zhouju.price, zhouju.zhouju, zhouju.youhao);
// break;
// }
//}
//Console.WriteLine("--------------------------------------------------------------------");

//想要一辆油耗最低的车

 //for (int i = 0; i < 8; i++)
            //{
            //    for (int j = 1; j < 9; j++)
            //    {
            //        pinpai a = (pinpai)al[i];
            //        pinpai b = (pinpai)al[j];
            //        if (a.youhao > b.youhao)
            //        {
            //            object zhong = al[i];
            //            al[i] = al[j];
            //            al[j] = zhong;
            //        }
            //    }
            //}
            //pinpai ee = (pinpai)al[0];
            //Console.WriteLine("油耗最低的车辆是{0}，价格{1}，轴距{2}，油耗{3}。", ee.name, ee.price, ee.zhouju, ee.youhao);
            //Console.WriteLine("--------------------------------------------------------------------");

//想要一辆油耗最低的奥迪车

 //for (int i = 0; i < 9; i++)
            //{
            //    pinpai youhao = (pinpai)al[i];
            //    if (youhao.name.Contains("奥迪"))
            //    {
            //        Console.WriteLine("奥迪车中油耗最低的是{0}，价格{1}，轴距{2}，油耗{3}。", youhao.name, youhao.price, youhao.zhouju, youhao.youhao);
            //        break;
            //    }
            //}
            //Console.WriteLine("--------------------------------------------------------------------");

//我只有50万，看看能买什么车

  //int biao = 0;
            //for (int i = 0; i < 9; i++)
            //{
            //    pinpai a = (pinpai)al[i];

            //    if (a.price <= 50)
            //    {
            //        biao++;
            //        Console.WriteLine("第{0}辆：{1}，价格{2}，轴距{3}，油耗{4}。", biao, a.name, a.price, a.zhouju, a.youhao);
            //    }
            //}
            //Console.WriteLine("--------------------------------------------------------------------");

//我只需要60万以上的车，列出来所有车型和所有信息

 //int biao1 = 0;
            //for (int i = 0; i < 9; i++)
            //{
            //    pinpai a = (pinpai)al[i];

            //    if (a.price > 60)
            //    {
            //        biao1++;
            //        Console.WriteLine("第{0}辆：{1}，价格{2}，轴距{3}，油耗{4}。", biao1, a.name, a.price, a.zhouju, a.youhao);
            //    }
            //}
            //Console.WriteLine("--------------------------------------------------------------------");

//轴距必须超过3m，列列表

 //int biao2 = 0;
            //for (int i = 0; i < 9; i++)
            //{
            //    pinpai a = (pinpai)al[i];

            //    if (a.zhouju > 3000)
            //    {
            //        biao2++;
            //        Console.WriteLine("第{0}辆：{1}，价格{2}，轴距{3}，油耗{4}。", biao2, a.name, a.price, a.zhouju, a.youhao);
            //    }
            //}
            //Console.WriteLine("--------------------------------------------------------------------");

//油耗在8.5以下都行，列列表

//int biao3 = 0;
            //for (int i = 0; i < 9; i++)
            //{
            //    pinpai a = (pinpai)al[i];

            //    if (a.youhao < 8.5)
            //    {
            //        biao3++;
            //        Console.WriteLine("第{0}辆：{1}，价格{2}，轴距{3}，油耗{4}。", biao3, a.name, a.price, a.zhouju, a.youhao);
            //    }
            //}
            //Console.WriteLine("--------------------------------------------------------------------");

//我不在乎油耗，要油耗最高的车

  //for (int i = 0; i < 8; i++)
            //{
            //    for (int j = 0; j < 9; j++)
            //    {
            //        pinpai a = (pinpai)al[i];
            //        pinpai b = (pinpai)al[j];
            //        if (a.youhao > b.youhao)
            //        {
            //            object zhong = al[i];
            //            al[i] = al[j];
            //            al[j] = zhong;
            //        }
            //    }
            //}
            //pinpai xx = (pinpai)al[0];
            //Console.WriteLine("油耗最高的车辆是{0}，价格{1}，轴距{2}，油耗{3}。", xx.name, xx.price, xx.zhouju, xx.youhao);
            //Console.WriteLine("--------------------------------------------------------------------");