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)
{
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：

警告1检测到无法访问的代码E:\学习\ConsoleApplication13\ConsoleApplication13\Program.cs3246ConsoleApplication13
错误2“ConsoleApplication13.Program.Maxi(int[], out int[])”: 并非所有的代码路径都返回值E:\学习\ConsoleApplication13\ConsoleApplication13\Program.cs2320ConsoleApplication13



[解决办法]

C# code

//你的错误在这个方法上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;  }