ssM1231CcbM1231CwerwerM2321Csss 如何把M1231C的数字提取出来呢？

Question

逐个字符取出来，并判断，不就行了？

Answer 1

  string str = "ssM1231CcbM1231CwerwerM2321Csss";
            string sub = str.Substring(2, 6);
            List<int> list = new List<int>();
            
            for (int i = 0; i < sub.Length; i++)
            {
                if (char.IsDigit(sub[i]))
                {
                    list.Add(int.Parse(sub[i].ToString()));
                }
            }