unity 解析tmx

using UnityEngine;
using System.Collections;
using System.IO;
using System.Xml;

public class xml : MonoBehaviour {

	XmlDocument xmlDoc = new XmlDocument ();

	void Start ()
	{

		XmlDocument xmlDoc = new XmlDocument ();
		xmlDoc.Load ("Assets/Round1.xml");
		XmlNode mapNode = xmlDoc.SelectSingleNode ("map");

		// map
		foreach (XmlNode layerNode in mapNode.ChildNodes)
		{
			//tileset layer
			if (layerNode.Name == "layer")
			{
				XmlElement layerElement = (XmlElement)layerNode;
				Debug.Log (layerElement.GetAttribute ("width").ToString());
				Debug.Log (layerElement.GetAttribute ("height").ToString());

				//data
				foreach (XmlNode dataNode in ((XmlElement)layerNode).ChildNodes)
				{
					//tile
					foreach (XmlNode tileNode in ((XmlElement)dataNode).ChildNodes) {
						XmlElement tileElement = (XmlElement)tileNode;
						Debug.Log (tileElement.GetAttribute ("gid").ToString ());

					}
				}
			}
		}

	}

}