关于XML的操作
有这样的一个xml
<a>
<b>
<c i="1" />
</b>
<b>
<c j="2" />
<d k="3" />
</b>
</a>
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load(@"c:\test.xml");
XmlElement element = xmlDoc.CreateElement("e");
element.SetAttribute("i", "4");
xmlDoc.SelectSingleNode("/a/b[2]").AppendChild(element);
element = xmlDoc.CreateElement("b");
element.InnerText = string.Empty;
xmlDoc.DocumentElement.AppendChild(element);
xmlDoc.Save(@"c:\test.xml");
static void Test1()
{
string str = "a2b1ci1b2cj2dk3";
Match match = Regex.Match(str, @"^([a-z]\d)([a-z]\d
[解决办法]
[a-z]{2,2}\d)+$");
if (match == null
[解决办法]
!match.Success)
{
throw new InvalidOperationException("字符串无法转换成Xml");
}
XmlDocument doc = new XmlDocument();
Group group = match.Groups[1];
XmlElement root = CreateNode(group.Value, doc);
doc.AppendChild(root);
group = match.Groups[2];
XmlElement element = null;
foreach (Capture capture in group.Captures)
{
if (Regex.IsMatch(capture.Value,@"^[a-z]\d$"))
{
element = CreateNode(capture.Value, doc);
root.AppendChild(element);
}
else if (Regex.IsMatch(capture.Value,@"^[a-z]{2,2}\d$")
&& element != null)
{
element.AppendChild(CreateNode(capture.Value,doc));
}
}
Console.WriteLine(doc.InnerXml);
Console.ReadLine();
//output:<a><b><c i="1" /></b><b><c j="2" /><d k="3" /></b></a>
}
static XmlElement CreateNode(string str, XmlDocument doc)
{
if (string.IsNullOrEmpty(str))
{
throw new ArgumentNullException("str");
}
if (doc == null)
{
throw new ArgumentNullException("doc");
}
string nodeName = str.Substring(0, 1);
XmlElement element = doc.CreateElement(nodeName);
str = str.Substring(1);
Match match = Regex.Match(str, @"^([a-z])(\d)$");
if (match != null
&& match.Success)
{
string attributeName = match.Groups[1].Value;
string value = match.Groups[2].Value;
XmlAttribute attr = element.Attributes.Append(doc.CreateAttribute(attributeName));
attr.Value = value;
}
return element;
}
