C#，用foreach语句编写循环遍历数组，找出个位数，十位数，百位数，千位数分别有多少个的程序

在线等，谢谢

int[] numList = new int[] { 1, 2, 3, 11, 22, 33, 111, 222, 333 };
string numList1 = "个位数：";
string numList2 = "十位数：";
string numList3 = "百位数：";
foreach (int i in numList)
{
if (i >= 0 && i < 10)
{
numList1 += i.ToString() + " ";
}
else
if (i >= 10 && i < 100)
{
numList2 += i.ToString() + " ";
}
else if (i >= 100 && i < 1000)
{
numList3 += i.ToString() + " ";
}
}
MessageBox.Show(numList1+numList2+numList3);

public void div() { int a = 0;//能被3整除 int b = 0;//不能别3整除 int[] arry={1,3,4,5,6,34,7,12,65,76,34,56,45}; foreach (int i in arry) { if (i % 3 == 0) { a++; } else { b++; } } console.write("能被3整除的有{0}个，不能被3整除的有{1}个",a,b) }

using System; using System.Collections.Generic; using System.Linq; using System.Text; using System.Threading.Tasks; namespace ConsoleApplication3 {     class Program     {         static void Main(string[] args)         {             int[] numList = new int[] { 22, 444, 3, 5555, 6666 };             //4位数或小于4位数             int[] digit = new int[] { 0, 0, 0, 0 };             foreach (int num in numList)             {                 int n = num.ToString().Length;                 while (n > 0)                 {                     digit[n - 1] += 1;                     --n;                 }             }             Console.WriteLine("个位数{0}，十位数{1}，百位数{2}，千位数{3}", digit[0],digit[1],digit[2],digit[3]);             Console.ReadLine();         }     } }