2

我的 XML 的一部分如下所示：

<IOConfig>
  <Packet Name="PacketOut" RemoteAddress="10.0.2.223" RemotePort="2020" NetworkInterface="ETH0">
    <Signal Type="float" Name="x_out" Unit="m/s" Routing="" UnityObject="CraneBoom" UnityName="Out" NetworkConvert="1"></Signal>
    <Signal Type="float" Name="y_out" Unit="m/s" Routing="" UnityObject="CraneBoom" UnityName="Out" NetworkConvert="1"></Signal>
    <Signal Type="float" Name="z_out" Unit="m/s" Routing="" UnityObject="CraneBoom" UnityName="Out" NetworkConvert="1"></Signal>
    <Signal Type="float" Name="alpha_out" Unit="m/s" Routing="" UnityObject="CraneBoom" UnityName="Out" NetworkConvert="1"></Signal>
    <Signal Type="float" Name="theta_out" Unit="m/s" Routing="" UnityObject="CraneBoom" UnityName="Out" NetworkConvert="1"></Signal>
    <Signal Type="float" Name="phi_out" Unit="m/s" Routing="" UnityObject="CraneBoom" UnityName="Out" NetworkConvert="1"></Signal>
    <Signal Type="float" Name="x_out1" Unit="m/s" Routing="" UnityObject="CraneSlewing" UnityName="Out1" NetworkConvert="1"></Signal>
    <Signal Type="float" Name="y_out1" Unit="m/s" Routing="" UnityObject="CraneSlewing" UnityName="Out1" NetworkConvert="1"></Signal>
    <Signal Type="float" Name="z_out1" Unit="m/s" Routing="" UnityObject="CraneSlewing" UnityName="Out1" NetworkConvert="1"></Signal>
    <Signal Type="float" Name="alpha_out1" Unit="m/s" Routing="" UnityObject="CraneSlewing" UnityName="Out1" NetworkConvert="1"></Signal>
    <Signal Type="float" Name="theta_out1" Unit="m/s" Routing="" UnityObject="CraneSlewing" UnityName="Out1" NetworkConvert="1"></Signal>
    <Signal Type="float" Name="phi_out1" Unit="m/s" Routing="" UnityObject="CraneSlewing" UnityName="Out1" NetworkConvert="1"></Signal>
  </Packet>
  <Packet Name="PacketIn" LocalPort="2021" NetworkInterface="ETH0">
    <Signal Type="float" Name="x_in" Unit="m/s" Routing="" UnityObject="CraneBoomCrash" UnityName="collider1" NetworkConvert="1"></Signal>
    <Signal Type="float" Name="y_in" Unit="m/s" Routing="" UnityObject="CraneBoomCrash" UnityName="collider1" NetworkConvert="1"></Signal>
    <Signal Type="float" Name="z_in" Unit="m/s" Routing="" UnityObject="CraneBoomCrash" UnityName="collider1" NetworkConvert="1"></Signal>
    <Signal Type="float" Name="alpha_in" Unit="m/s" Routing="" UnityObject="CraneBoomCrash" UnityName="collider1" NetworkConvert="1"></Signal>
    <Signal Type="float" Name="theta_in" Unit="m/s" Routing="" UnityObject="CraneBoomCrash" UnityName="collider1" NetworkConvert="1"></Signal>
    <Signal Type="float" Name="phi_in" Unit="m/s" Routing="" UnityObject="CraneBoomCrash" UnityName="collider1" NetworkConvert="1"></Signal>
  </Packet>
</IOConfig>

所需的输出是：Out、Out1、collider1。

也就是说，不应打印 UnityName 的重复值。这可以做到吗？

代码截断了读取 UnityName 的重复值：

public class XMLStringReader : MonoBehaviour
{
    public string slectedItem;
    private bool editing = false;

    public string signalsa;
    public XmlReaderSettings settings;

    void OnGUI ()
    {
        if ( GUILayout.Button(slectedItem))
        {
            editing = true;
        }

        XmlReaderSettings settings = new XmlReaderSettings();
        settings.IgnoreWhitespace = true;
        settings.IgnoreComments = true;

        using ( XmlReader reader = XmlReader.Create("D://Docs/Unity3D/cdp/UDPApplication/Components/UDPIOServer.xml", settings) ) 
        {
            while ( reader.Read() ) 
            {
                if ( reader.NodeType == XmlNodeType.Element ) 
                {
                    if ( reader.HasAttributes ) 
                    {
                        if ( reader.GetAttribute("UnityName") != null ) 
                        {
                            signalsa = reader.GetAttribute("UnityName");
                            string [] signalsCDP = {signalsa};

                            if (editing)
                            {
                                for(int i =0; i < signalsCDP.Length; i++) 
                                {
                                    if (GUILayout.Button(signalsCDP[i]))
                                    {
                                        slectedItem = signalsCDP[i];
                                        editing = false;
                                        print(signalsCDP[i].ToString());
                                    }
                                }
                            }
                        }
                    }
                }
            }
        }
    }
}
4

4 回答 4

3

您可以为您的任务使用LINQ to XML ：

XElement x = XElement.Load("File containing your xml");
var list = x.Descendants("Signal")
            .Where(d => d.HasAttributes && d.Attribute("UnityName") != null)
            .Select(d => d.Attribute("UnityName").Value)
            .Distinct();
foreach (string s in list)
    Console.WriteLine(s);
于 2012-11-12T11:32:44.833 回答
1

遍历所有值并使用包含检查将它们添加到 List/Dictionary/Array/Whatever。之后打印收集的值。

这是解决方案：

    internal static void PrintAttributeValues(XDocument scr)
    {
        List<string> values = new List<string>();
        foreach (XElement elem in scr.Descendants("Signal"))
        {
            if (!values.Contains(elem.Attribute("UnityName").Value))
            {
                values.Add(elem.Attribute("UnityName").Value);
            }
        }

        for (int j = 0; j < values.Count; j++)
        {
            Console.WriteLine(values[j]);
        }
    }
于 2012-11-12T11:27:05.470 回答
0

Another way is to define the XML Schema for whatever XML you need apart from Programmatic approach. XML Schema ensures the compliance of the XML.

An XML Schema describes the structure of an XML document.

Have a look at the following references:

  1. XML Schema Tutorial
  2. XSD Attributes
于 2012-11-12T11:29:06.963 回答
0

只需创建一个包含不同值的集合。然后检查下一个属性值是否已经在该集合中。如果没有，请将其添加到集合中并执行您需要的任何操作。

List<string> values = new List<string>();

using (XmlReader reader = XmlReader.Create("your path", settings)) 
{
    while (reader.Read()) 
    {
        if (reader.NodeType == XmlNodeType.Element) 
        {
            if (reader.HasAttributes) 
            {
                if (reader.GetAttribute("UnityName") != null) 
                {
                    signalsa = reader.GetAttribute("UnityName");
                    if (!values.Contains(signalsa))
                    {
                        values.Add(signalsa);
                        //rest of your code goes here...
                    }
                }
            }
        }
    }
}
于 2012-11-12T12:24:46.517 回答