note

 

xml 有屬性樣子 

https://stackoverflow.com/questions/9025288/xmlwriter-to-write-element-string-with-attribute

<book id='1' author='j.k.rowling' year='2010'> 
    <book>999</book>
</book>

xml 讀取屬性

https://docs.microsoft.com/zh-tw/dotnet/api/system.xml.xmlnodereader.getattribute?view=netframework-4.8

using System;
using System.IO;
using System.Xml;

public class Sample 
{
  public static void Main()
  {
    XmlNodeReader reader = null;

    try
    {
       //Create and load the XML document.
       XmlDocument doc = new XmlDocument();
       doc.LoadXml("<book genre='novel' ISBN='1-861003-78' publicationdate='1987'> " +
                   "</book>"); 

       // Load the XmlNodeReader 
       reader = new XmlNodeReader(doc);
  
       //Read the ISBN attribute.
       reader.MoveToContent();
       string isbn = reader.GetAttribute("ISBN");
       Console.WriteLine("The ISBN value: " + isbn);

     } 

     finally 
     {
        if (reader != null)
          reader.Close();
      }
  }
  
} // End class

OuterXml

https://docs.microsoft.com/zh-tw/dotnet/api/system.xml.xmldocument.documentelement?view=netframework-4.8

using System;
using System.IO;
using System.Xml;

public class Sample
{
  public static void Main()
  {
    //Create the XmlDocument.
    XmlDocument doc = new XmlDocument();
    doc.LoadXml("<?xml version='1.0' ?>" +
                "<book genre='novel' ISBN='1-861001-57-5'>" +
                "<title>Pride And Prejudice</title>" +
                "</book>");

    //Display the document element.
    Console.WriteLine(doc.DocumentElement.OuterXml);
 }
}

輸出的樣子

<book genre="novel" ISBN="1-861001-57-5"><title>Pride And Prejudice</title></book>   

 

 

其他:

//取得->網頁所有文字，用StreamReader物件讀取所有字串，儲存到string物件並回傳
string resp = Util.GetURLResp(url);

//字串->XML物件(但是轉XML物件回傳><)
XmlDocument doc = new XmlDocument();
doc.LoadXml(resp);

//把&gt;&lt;轉成正常<>
XmlElement root = doc.DocumentElement;        
doc.LoadXml(root.InnerText);

//做第二次 XML 的解析
root = doc.DocumentElement;
doc.LoadXml(root.InnerXml);

//reader
XmlNodeReader reader = new XmlNodeReader(doc);
reader.MoveToContent();//(重要)Read the ISBN attribute.
string cash = reader.GetAttribute("cash");

//讀取所有網頁，串成字串
string resp = Util.GetURLResp(url);

//把字串載入成XML物件
XmlDocument doc = new XmlDocument();
doc.LoadXml(resp);

XmlElement root = doc.DocumentElement;
//要把 &lt; 這類的東西，改成 < ，變成正常的文字，所以用 InnerText
doc.LoadXml(root.InnerText);
//做第二次 XML 的解析
root = doc.DocumentElement;

//取值
if (root.HasChildNodes)
{
	foreach (XmlNode node in root)
	{
		ABC += node["ABC"].InnerText + ",";
		DDD += node["DDD"].InnerText + ",";
	}
	ABC = ABC.TrimEnd(',');
	DDD = DDD.TrimEnd(',');

}
result = ABC + "#" + DDD;
return result;