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分享XDocument srcTree = new XDocument(
new XComment("This is a comment"),
new XElement("Root",
new XElement("Child1", "data1"),
new XElement("Child2", "data2"),
new XElement("Child3", "data3"),
new XElement("Child2", "data4"),
new XElement("Info5", "info5"),
new XElement("Info6", "info6"),
new XElement("Info7", "info7"),
new XElement("Info8", "info8")
)
);
XDocument doc = new XDocument(
new XComment("This is a comment"),
new XElement("Root",
from el in srcTree.Element("Root").Elements()
where ((string)el).StartsWith("data")
select el
)
);
Console.WriteLine(doc);