c#从远程XML文件动态添加Regex模式

我想在运行时将它们动态添加到我的应用程序中。

相关代码如下:

//count length of rules
countRules = regexFile.DocumentElement.SelectNodes("/regex/item/rule").Count;
ruleIndex = 0;
//array of pattern objects
pattern = new Regex[countRules];
//allocate regex rules
foreach (XmlNode node in regexFile.DocumentElement.SelectNodes("/regex/item"))
            {
                string rule = node["rule"].InnerText;
                string text = rule;

                pattern[ruleIndex] = new Regex(text);

                //deny increment after last item
                if (ruleIndex < (countRules-1))
                {
                    ruleIndex++;
                }
            }

XML文件包含如下项:

<item>
    <rule>\\b[A-ZÄÖÜ]{1}\\d{6}\\b</rule>
</item>

还尝试了引号:

<item>
    <rule>"\\b[A-ZÄÖÜ]{1}\\d{6}\\b"</rule>
</item>

在记录和怀疑之后,我很确定这是以下几行:

pattern[ruleIndex] = new Regex(text);

pattern[ruleIndex] = new Regex("\\b[A-ZÄÖÜ]{1}\\d{6}\\b");

我是否为new Regex(“”)设置了错误的参数?它应该有引号?