求解决
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics;

namespace ConsoleApplication13
{
  class Program
  {
  static void Main(string[] args)
  {
  int[] testArray = { 4,7,4,2,7,3,3,7,8,3,9,1,9};
  int[] maxValIndices;
  int maxVal = Maxi(testArray, out maxValIndices);
  Console.WriteLine("Maximum value {0} found at element indices ",maxVal);
  foreach (int index in maxValIndices)
  {
  Console.WriteLine("{0}",index);
  }
  Console.ReadKey();
  }
  static int Maxi(int[] integers, out int[] indices)
  {
  Debug.WriteLine("Maximum Value search started.");
  indices = new int[1];
  int maxVal=integers[0];
  indices[0] = 0;
  int count = 1;
  int i;
  Debug.WriteLine(string.Format("maximum value initialized to {0},at element index 0.", maxVal));
  for (i = 1; i < integers.Length; i++)  
  {
  Debug.WriteLine(string.Format("Noe looking at element at index {0}", i));
  if (integers[i] > maxVal)
  {
  maxVal = integers[i];
  count = i;
  indices = new int[1];
  indices[0] = i;
  Debug.WriteLine(string.Format("New maximum found.new value is{0},at element index{1}", maxVal, i));

  }
  else
  {
  if (integers[i] == maxVal)
  {
  count++;
  int[] oldIndices = indices;
  indices = new int[count];
  oldIndices.CopyTo(indices, 0);
  indices[count - 1] = i;
  Debug.WriteLine(string.Format("Duplicate maximum found at element index {0}", i));

  }
  }
  Trace.WriteLine(string.Format("Maximum Value {0} found,with {1} occurrences.", maxVal, count));
  Debug.WriteLine(string.Format("Maximum value search completed."));
  return maxVal;

  }

  }
   

  }
}
错误提示：
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics;

namespace ConsoleApplication13
{
  class Program
  {
  static void Main(string[] args)
  {
  int[] testArray = { 4,7,4,2,7,3,3,7,8,3,9,1,9};
  int[] maxValIndices;
  int maxVal = Maxi(testArray, out maxValIndices);
  Console.WriteLine("Maximum value {0} found at element indices ",maxVal);
  foreach (int index in maxValIndices)
  {
  Console.WriteLine("{0}",index);
  }
  Console.ReadKey();
  }
  static int Maxi(int[] integers, out int[] indices)
  {
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