要将字符串转换为字符数组，我们需要使用tocharArray()方法。

C#将字符串转换为字符数组示例

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace ConsoleApplication5
{
  class Program
  {
      static void Main(string[] args)
      {
          string value = "Dot Net Heaven";
          //Use ToCharArray to convert string to array.
          char[] array = value.ToCharArray();
          //Loop through array.
          for (int i = 0; i < array.Length; i++)
          {
              //Get character from array.
              char letter = array[i];
              //Display each letter.
              Console.Write("Letter: ");
              Console.WriteLine(letter);
              Console.ReadLine();
          }
      }
  }
}