string str = "abcdef";
            byte[] bs = Encoding.ASCII.GetBytes(str);

------解决方案--------------------
我跟过了，是61啊

------解决方案--------------------
  string str = "abcdef";
           char[] array = str.ToCharArray();
           byte[] barray = new byte[array.Length];
           for (int i=0;i<array.Length;i++)
           {
               barray[i] = (byte)array[i];
           }

------解决方案--------------------
C# code

var array = "abcdef"
            .Select(x => (Byte)x)
            .ToArray();

------解决方案--------------------
探讨


C# code

var array = "abcdef"
            .Select(x => (Byte)x)
            .ToArray();


------解决方案--------------------
C# code

        unsafe static void Main(string[] args)
        {
            string str = "abcdef";
            byte[] bs = new byte[str.Length];

            for (int i = 0; i < str.Length; i++)
            {
                bs[i] = (byte)str[i];
                Console.WriteLine("{0:x}", bs[i]);
            }
        }