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 <?xml version="1.0" encoding="utf-8"?>
<Class>
<student id="2001001">
<name>ÕÅÈý</name>
<age>18</age>
<scores>
<ÓïÎÄ>79</ÓïÎÄ>
<Êýѧ>90</Êýѧ>
</scores>
</student>
<student id="2001002">
<name>ÀîËÄ</name>
<age>20</age>
<scores>
<ÓïÎÄ>88</ÓïÎÄ>
<Êýѧ>64</Êýѧ>
</scores>
</student>
</Class>
  
 
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StreamReader sr = new StreamReader("OriginXml.xml");
string str = sr.ReadToEnd();
sr.Close();
str=str.Replace("student", "pStudent");
//Èç¹ûÓÐÏÞ¶¨Ãû³Æ£¬×îºÃÓÃÕýÔò±í´ïʽ²éѯ¡¢Ìæ»»
StreamWriter sw = new StreamWriter("ModifyXml.xml");
sw.Write(str);
sw.Flush(); sw.Close();


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XmlDocument doc = new XmlDocument();
doc.Load("OriginXml.xml");
XmlElement oldEleme


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