字串轉10進位,16進位

參考:

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

namespace Console
{
    class Program
    {
        static void Main(string[] args)
        {
            //假設特定字串如下
              string subject = "?？ 　國文(一) Web Development 網路發展";
            char[] charArr = subject.ToCharArray();

            for (int counter = 0; counter < charArr.Length; counter++)
            {
                int intValue = Convert.ToInt32(charArr[counter]);
                string strHex = String.Format("{0:X}", intValue);
                System.Console.WriteLine("字元: {0}, 十進位: {1}, 十六進位: {2}", charArr[counter].ToString(), intValue, strHex);
            }

            System.Console.Read();
        }
    }
}

--
我自己練習:
Public Class Form1

    Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
        Dim a As String = "1234這78"
        Dim b As Char() = a.ToCharArray
        Dim intvalue As Integer
        Dim hexstr As String
        ListBox1.Items.Clear()
        For i As Integer = 0 To b.Length - 1
            intvalue = Convert.ToInt32(b(i))
            hexstr = String.Format("{0:x}", intvalue)
            ListBox1.Items.Add(String.Format("值:{0},十進位:{1},十六進位:{2}", b(i).ToString, intvalue, hexstr))
        Next

    End Sub
End Class