2018-12-12 下标数字

代码

        using System.Collections;

        int num; int a;
        Console.WriteLine("初始成绩：");
        ArrayList list = new ArrayList();
        list.Add(99);
        list.Add(85);
        list.Add(82);
        list.Add(63);
        list.Add(60);
        list.Sort();
        foreach (var item in list)
        {
            Console.Write("{0}", item+"\t");
        }
        Console .WriteLine ();
        Console.Write("请输入一个成绩：");
        num = Convert.ToInt32(Console.ReadLine());
        Console.Write("插入成绩的下标是：");
        a = Convert.ToInt32(Console.ReadLine());
        a = a - 1;
        list.Insert(a,num);
        Console.WriteLine("插入后的成绩：");
        foreach (var item in list)
        {
            Console.Write("{0}", item+"\t");
        }
        Console.ReadKey();

效果

image.png