使用键值对读取xml节点中的所有值，并在

Question

我有一个带有键/值对的XML文件。

我正在使用的XML文件：

<?xml version="1.0" encoding="UTF-8"?>
<MAN_J6_Variant>
    <play_music_media_HK>
        <key name ="Media_Press" value="echo 'Media::1' >> /pps/can/test_pps"/>
        <key name ="Media_Release" value="echo 'Media::0' >> /pps/can/test_pps"/>
        <key name ="Media_Source" value ="./fs/etfs/Touch_new -X=258 -Y=26 -display=4 -relTimeout=0.5 " />
        <key name ="USB" value ="./fs/etfs/Touch_new -X=480 -Y=134 -display=4 -relTimeout=0.5 " />
    </play_music_media_HK>
    <softkeys>  
        <key name ="Media_SK" value ="./fs/etfs/Touch_new -X= -Y = -display= -relTimeout= " />
  </softkeys>
    <play_music_media_SK>
        <key name ="bottom_home" value ="./fs/etfs/Touch_new -X=755 -Y=455 -display=4 -relTimeout=0.5 " />
        <key name ="HS3" value ="./fs/etfs/Touch_new -X=464 -Y=27 -display= -relTimeout= " />
        <key name ="Media_Source" value ="./fs/etfs/Touch_new -X=258 -Y=26 -display=4 -relTimeout=0.5 " />
        <key name ="USB" value ="./fs/etfs/Touch_new -X=480 -Y=134 -display=4 -relTimeout=0.5 " />
    </play_music_media_SK>
    <Inside_media>
        <key name ="Media_Source" value ="./fs/etfs/Touch_new -X= -Y = -display= -relTimeout= " />
        <key name ="Browse" value ="./fs/etfs/Touch_new -X= -Y = -display= -relTimeout= " />
        <key name ="Audio_playing" value ="./fs/etfs/Touch_new -X= -Y = -display= -relTimeout= " />
    </Inside_media>
    <Inside_Media_source>
        <key name ="USB" value ="./fs/etfs/Touch_new -X= -Y = -display= -relTimeout= " />
        <key name ="SD1" value ="./fs/etfs/Touch_new -X= -Y = -display= -relTimeout= " />
        <key name ="SD2" value ="./fs/etfs/Touch_new -X= -Y = -display= -relTimeout= " />
        <key name ="USB1" value ="./fs/etfs/Touch_new -X= -Y = -display= -relTimeout= " />
        <key name ="IPOD" value ="./fs/etfs/Touch_new -X= -Y = -display= -relTimeout= " />
    </Inside_Media_source>
    <Inside_Media_Browse>
        <key name ="Artist" value ="./fs/etfs/Touch_new -X= -Y = -display= -relTimeout= " />
        <key name ="Albums" value ="./fs/etfs/Touch_new -X= -Y = -display= -relTimeout= " />
    </Inside_Media_Browse>
 </MAN_J6_Variant>

我需要在单独的行中打印节点play_music_media_SK中的所有值。

我用linq编写了下面的代码

 var play_music_media_SK = doc.Descendants("play_music_media_SK").Select(x => new { play_music_media_SK = x.Attribute("name").Value, name = x.Attribute("value").ToString() });


//TestSetup.LogFile.WriteMsg("values in softkey"+taps);

  foreach (var value in play_music_media_SK)
  {
    console.writeline(value);
  }

但这不管用。

Answer 1

这应该给你正确的结果：-

var result = doc.Root.Element("play_music_media_SK")
                      .Elements("key").Select(x => (string)x.Attribute("value"));

  foreach (var item in result)
  {
      Console.WriteLine(item);
  }

方法：从根节点搜索play_music_media_SK元素，在其中查找key元素(使用Elements，因为它们都是play_music_media_SK的直接子元素)，然后最终投影属性value。