练习组数，感觉没有理解到位

namespace lianxi
{
internal class Program
{
private static string firstName;
private static object course1Name;
private static object course5Name;

    static void Main()
    {

        //定义一个数组，给出5个数，求最大数值
        #region MyRegion
        //打印输出10个“大家好'
        //输出1-100所有数值
        //求1-100累加和
        //输出1-100间所有的偶数

        //for (int name = 1; name <= 100 ; name++)
        //{
        //    Console.WriteLine(+name);
        //}
        //int sum = 0;
        //for (int dex = 1; dex <= 100; dex++)
        //{
        //    sum += dex;
        //}
        //Console.WriteLine($"1-100的累加和；{sum}");
        //int sum = 0;
        //for (int dex  = 0; dex <= 100; dex++)
        //{
        //    if (dex%2==0)
        //    {
        //        Console.WriteLine(dex);
        //    }
        //}
        //int sum = 0;
        //for (int i = 2; i <= 100; i  += 2)                     //从2开始，每次加2
        //{
        //    Console.WriteLine(i);                               //输出当前偶数
        //}
        //int start = 1;
        //int end = 100;

        //Console.WriteLine($"{start}到{end}之间的偶数");
        //for (int i = start; i <= end; i++)
        //{

        //    if ( i % 2 == 0)                                            //判断是否为偶数
        //    {
        //        Console.WriteLine($"{i}");                              //输出偶数
        //    }
        //} 
        #endregion
        int[] intArray = {22,30,8};                      //表示数组的长度
        int intMax = int.MinValue;                        //最大数值
        int intMin = int.MaxValue;                        //最小数值
        int intTatle = 0;                                 //总和
        int intAVG = 0;                                   //平均数

        Console.WriteLine("数组的长度=" + intArray.Length);
        for (int i = 0; i < intArray.Length; i++)
        {
            if (intArray[i]>intMax)
            {
                intMax = intArray[i];
            }
            if (intArray[i] < intMin)
            {
                intMin = intArray[i];
            }
            //求累加和
            intTatle += intArray[i];


        }
        intAVG = intTatle / intArray.Length;
        Console.WriteLine("最大数值={0}",intMax);
        Console.WriteLine("最大数值={0}", intMin);
        Console.WriteLine("最大数值={0}", intAVG);

    }


}

}