反向数组 A-Z C#

Question

如何反转列表以便从“ZYX....A”反向显示 A-Z 我尝试创建 ReverseAlpha 方法，但我不确定从那里做什么。

static void Main(string[] args) {
    //variable declarations
    const int SIZE = 26;
    char[]
    alpha = new char[SIZE];
    //function calls
    FillAlpha(alpha);
    Console.WriteLine("Print Original List A-Z:");
    PrintAlpha(alpha);
    ReverseAlpha(alpha);
    Console.WriteLine("\nPrint Reversed List Z-A:");
    PrintAlpha(alpha);
    Console.Write("\n\nPress any key to continue:");
    Console.ReadKey();
}

static void FillAlpha(char[] letters) {
    for (int i = 0; i < 26; i++) {
        letters[i] = (char)(i + 65);
    }
}

static void PrintAlpha(char[] letters) {
    foreach(char c in letters)
    Console.Write(c + " ");
    Console.WriteLine();
}

static void ReverseAlpha(char[] letters) {
    char a, b, temp;
    temp = a;
    a = b;
    b = temp:
}

Answer 1

https://msdn.microsoft.com/en-us/library/d3877932(v=vs.110).aspx

    static char[] ReverseAlpha(char[] letters)
    {
        letters = letters.Reverse().ToArray(); 
        return letters;
    }