字符串的分割操作

 static void Main(string[] args)
        {
            //重复分割符问题的实践和演示
            //实践运用的场景||、|同为分割符，2替换为空时出现的|||情况
            string content = "1234567890";
            string replaceOptions = "1|a||2|||3|||4|c";
            Console.WriteLine(replaceContent(content, replaceOptions));
            Console.ReadKey();
        }

 /**
         * 适用于1|a||2|||3|c模式分割,兼容多个|||的情况
         **/
        public static string replaceContent(string content, string filterWord)
        {
            ArrayList filterWhiteSpace = new ArrayList();
            spliteMuliSymbol(filterWord, ref filterWhiteSpace);
            for (int i = 0; i < filterWhiteSpace.Count; i++)
            {
                string[] replaceArr = filterWhiteSpace[i].ToString().Split('|');
                content = Regex.Replace(content, replaceArr[0], replaceArr[1]);
            }
            return content;
        }

 public static void spliteMuliSymbol(string filterWord, ref ArrayList filterWhiteSpace)
        {
            //判断是否存在替换为空的情况
            if (filterWord.Contains("|||"))
            {
                int whiteSpaceIndex = filterWord.IndexOf("|||");
                ArrayList arrHalf = new ArrayList();
                string firstHalf = filterWord.Substring(0, whiteSpaceIndex + 1);
                string latterHalf = filterWord.Substring(whiteSpaceIndex + 3);
                arrHalf.Add(firstHalf);
                arrHalf.Add(latterHalf);
                for (int i = 0; i < arrHalf.Count; i++)
                {
                    spliteMuliSymbol(arrHalf[i].ToString(), ref filterWhiteSpace);
                }
            }
            else
            {
                string[] filterWordArray = Regex.Split(filterWord, @"||");
                foreach (string temp in filterWordArray)
                {
                    filterWhiteSpace.Add(temp);
                }
            }
        }