c# 正则数组替换

用法：配置字符串如 xml

     <AttrList>
      <Attr Name="TemplateId">1</Attr>
      <Attr Name="AppId">$0$</Attr>
      <Attr Name="BookId">$1$</Attr>
      <Attr Name="IsVip">$3$</Attr>
      <Attr Name="Status">$4$</Attr>
      <Attr Name="AuthorId">$5$</Attr>
      <Attr Name="CategoryId">$7$</Attr>
     </AttrList>

其中$$中间为数组下标。

public static string ReplaceDataByArray(ArrayList array, string strInfo)
  {
   string regexTest = "\\$\\d+\\$";
   if (Regex.IsMatch(strInfo, regexTest))
   {
    MatchCollection results = Regex.Matches(strInfo, regexTest);
    for (int i = 0; i < results.Count; i++)
    {
     string nowPatten = results[i].Value;
     regexTest = "\\$";
     int nowIndex =Convert.ToInt32(Regex.Replace(nowPatten, regexTest, ""));
     if (nowIndex < array.Count)
     {
      strInfo = strInfo.Replace(nowPatten, array[nowIndex].ToString());
     }
    }
   }
   return strInfo;
  }