详解C#中String.ToCharArray方法的使用

// string.ToCharArray()
namespace ConsoleApp4
{
    public class Example
    {
        public static void Main()
        {
            string str = "AaBbCcDd";
            char[] chars = str.ToCharArray();
            Console.WriteLine("Original string: {0}", str);
            Console.WriteLine("Character array:");
            for (int i = 0; i < chars.Length; i++)
            {
                Console.WriteLine("   {0}: {1}", i, chars[i]);
            }
        }
    }
}
//运行结果：
/*
Original string: AaBbCcDd
Character array:
   0: A
   1: a
   2: B
   3: b
   4: C
   5: c
   6: D
   7: d
 */

// String.ToCharArray(Int32, Int32)
namespace ConsoleApp5
{
    class Sample
    {
        public static void Main()
        {
            string str = "012wxyz789";
            char[] array;
 
            array = str.ToCharArray(3, 4);  //从index=3开始的4个字符
            Console.Write("The letters in '{0}' are: '", str);
            Console.Write(array);
            Console.WriteLine("'");
            Console.WriteLine("Each letter in '{0}' is:", str);
            foreach (char c in array)
                Console.WriteLine(c);
        }
    }
}
/*
运行结果：
The letters in '012wxyz789' are: 'wxyz'
Each letter in '012wxyz789' is:
w
x
y
z
*/