c#截取未知長度的字符串前面字符到數字爲止

        private string Name(string strcode)
        {
            StringBuilder sb = new StringBuilder();
            foreach (char var in strcode)
            {
                if (char.IsNumber(var))
                {
                    break;
                }
                sb.Append(var.ToString());
 
            }
            return sb.ToString ();
        }