public string FilterStr(string value, IList<string> filterList, bool isIgnoreCase, bool isReplaceAll)
        {
            string returnValue = value;
            string constFilter = "~!@##@!~";
            for (int i = 0; i < filterList.Count; i++)
            {
                if (isIgnoreCase)
                {
                    //不区分大小写
                    returnValue = System.Text.RegularExpressions.Regex.Replace(returnValue, filterList[i], constFilter + i.ToString(), System.Text.RegularExpressions.RegexOptions.IgnoreCase);
                }
                else
                {
                    //区分大小写
                    returnValue = returnValue.Replace(filterList[i], constFilter + i.ToString());
                }
            }
            string[] array;
            for (int i = 0; i < filterList.Count; i++)
            {
                if (isReplaceAll)
                {
                    returnValue = returnValue.Replace(constFilter + i.ToString(), string.Format("<a href=\"http://www.21shipin.com\" target=\"_blank\" title=\"{0}\">{0} </a>", filterList[i]));
                }
                else
                {
                    if (returnValue.Contains(constFilter + i.ToString()))
                    {
                        array = System.Text.RegularExpressions.Regex.Split(returnValue, constFilter + i.ToString(), System.Text.RegularExpressions.RegexOptions.IgnoreCase);
                        for (int j = 0; j < array.Length; j++)
                        {
                            if (j == 0)
                            {
                                returnValue = string.Format("{0}<a href=\"http://www.21shipin.com\" target=\"_blank\" title=\"{1}\">{1} </a>", array[0], filterList[i]);
                            }
                            else
                            {
                                returnValue += string.Format("{0}{1}", array[j], (j == array.Length - 1 ? "" : filterList[i]));
                            }
                        }
                    }
                }
            }

            return returnValue;
        }

------解决方案--------------------

探讨

最好写成一下函数。。头痛。为这个弄一半个月了。。。