关于字符串转16进制Ascii码类型字符串的问题

[szu_john]

代码一：

                var result = string.Empty;
                byte[] arrb = System.Text.Encoding.Default.GetBytes("abc");
                foreach (var b in arrb)
                {
                    result += b.ToString("x", CultureInfo.InvariantCulture) + " ";
                }

代码二

            string str = "abc";
             var arr = str.ToCharArray();
            var result = string.Empty;
            for (int i = 0; i < arr.Length; i++)
            {
                result += ((int)arr[i]).ToString("x", CultureInfo.InvariantCulture) + " ";
            }

请问这两段代码有什么区别？

[骑着蜗牛去爬山]

没啥区别，得到的result都一样 var result = string.Join(" ", "abc".Select(t => string.Format("{0:X}", Convert.ToInt32(t))).ToArray());