private void button3_Click(object sender, EventArgs e)

        {

            StringBuilder sb = new StringBuilder();

            string str = "686B666B686B666B706B5D9BACAFA0AC5D683532303833393737";

            for ( int i = ; i < str.Length; i++)

             {

                if (i %  == ) //奇数 ...1

                 {

                    sb.Append(str[i]);

                    sb.Append(" ");

                    continue;

                }

                sb.Append(str[i]);

            }

            var result = sb.ToString();

        }

    strlist = new string[] { "","A","", "B" };

            for (int i = ; i < strlist.Length; i++)

            {

                //空数据 前移

                if (strlist[i] == "")

                {

                    test(strlist, i);

                }

            }

 public void test(string[] strlist, int index)

        {

            for (int i = index; i < strlist.Length; i++)

            {

                if (i +  >= strlist.Length)

                {

                    strlist[i] = ""; //要替换的值

                    continue;

                }

                strlist[i] = strlist[i + ];

            }

        }

        private void button3_Click(object sender, EventArgs e)

        {

            StringBuilder sb = new StringBuilder();

            string str = "686B666B686B666B706B5D9BACAFA0AC5D683532303833393737";

            for (int i = ; i < str.Length; i++)

            {

                if (i %  == ) //奇数 ...1

                {

                    sb.Append(str[i]);

                    sb.Append("\r\n");

                    continue;

                }

                sb.Append(str[i]);

            }

            string result = sb.ToString();

            string[] strlist = result.Split("\r\n".ToCharArray(), StringSplitOptions.RemoveEmptyEntries);//返回值不包含空字符串元素,

            //去掉第三个和第7个 3=(i+1) i=2 第三个是2; 第七个是6;  取前8个字节

            strlist[] = ""; strlist[] = "";

            for (int i = ; i < strlist.Length; i++)

            {

                //空数据 前移

                if (strlist[i] == "")

                {

                    test(strlist, i);

                }

            }

            List<string> list = new List<string>();

            for (int i = ; i < strlist.Length; i++)

            {

                list.Add(strlist[i]);

                if (i == ( - ))

                {

                    break;

                }

            }

            //--减去37+30 = 67;

            sb.Length = ;

            for (int i = ;i<list.Count;i++)

            {

                var t = Convert.ToInt32(list[i]) - ;

                sb.Append(t);

            }

        }

        public void test(string[] strlist, int index)

        {

            for (int i = index; i < strlist.Length; i++)

            {

                if (i +  >= strlist.Length)

                {

                    strlist[i] = ""; //要替换的值

                    continue;

                }

                strlist[i] = strlist[i + ];

            }

        }