/// <summary>

        /// 截取两个指定字符串中间的字符串列表(开始和结束两个字符串不能相同！)

        /// </summary>

        /// <param name="content"></param>

        /// <param name="startStr"></param>

        /// <param name="endStr"></param>

        /// <returns></returns>

        public static List<string> GetAllSubstring(string content, string startStr, string endStr)

        {

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

            int len = content.Length;

            int startLen = startStr.Length;

            int endLen = endStr.Length;

            for (var i = ; i < len; i++)

            {

                string a = startStr.Substring(, );

                if (content[i].ToString() == a)

                {

                    int startIndex = (i + startLen - );

                    if (startIndex < len)

                    {

                        a = content.Substring(i, startLen);

                        if (a.Equals(startStr))

                        {

                            // 循环找出结尾匹配

                            for (int endIndex = startIndex; endIndex < len; endIndex++)

                            {

                                var str = "";

                                for (int j = ; j < endLen; j++)

                                {

                                    str += content[endIndex].ToString();

                                }

                                if (str == endStr&&endStr!=startStr)

                                {

                                    // 得到长度

                                    int splLen = endIndex - startIndex;

                                    string result = content.Substring(startIndex + , splLen - );

                                    resultList.Add(result);

                                    break;

                                }

                            }

                        }

                    }

                }

            }

            return resultList;

        }

例如

 var content = "{{first.DATA}}\n\n职位名称：{{job.DATA}}\n公司名称：{{company.DATA}}\n投递时间：{{time.DATA}}\n{{remark.DATA}}";

 var start = "{{";

 var end = "}}";

 var list =CommonHelper.GetAllSubstring(content, start, end);