关于在unity中XML的解析和创建_unity link.xml

using System.Collections;
using System.Collections.Generic;
using System.Xml;
using UnityEngine;

public class XmlTest : MonoBehaviour {

	// Use this for initialization
	void Start () {
		// ParseXML();
		// ParseXML2();
		CreateXML();
	}
	
	//解析xml方法一
	void ParseXML()
	{
		//xml文档类
		XmlDocument doc = new XmlDocument();
		//读取xml文档
		doc.Load(Application.dataPath+"/Resources/xmldata.xml");
		//读取节点或元素 只有一个节点 first和Last都可以用
		XmlElement rootEle = doc.LastChild as XmlElement;
		//studens节点
		XmlElement studentsEle = rootEle.FirstChild as XmlElement;
		//遍历students节点
		foreach(XmlElement studentEle in studentsEle.ChildNodes)
		{
			//获取ID  id是属性，通过属性方法获取
			string id = studentEle.GetAttribute("id");
			//获取姓名 获取这个表情值
			string name = studentEle.ChildNodes[0].InnerText;
			//获取年龄
			string age = studentEle.ChildNodes[1].InnerText;

			Debug.Log(id+" "+name+" "+age);
		}
	}
    //解析XML方法二
	void ParseXML2()
	{
		//xml文档类
		XmlDocument doc = new XmlDocument();
		//读取xml文档
		doc.Load(Application.dataPath+"/Resources/xmldata.xml");
		//XPath解析方式 路径语法:通用语法，不是为某个数据格式定义的
		//root/students/student/name   //绝对路径
		//    //name相对路径 会进行遍历搜索
		//结合使用 //students/hero[2]/name   可以直接拿第2个元素从1开始 
		//[last()-1]获取倒是2个
		//[position()<3] 获取前两个
		XmlNodeList list = doc.SelectNodes("/root/students/student[last()-1]");
		foreach(XmlElement ele in list)
		{
			Debug.Log(ele.InnerText);//如果想打印name标签名，用ele.name就可以
		}
	}

	void CreateXML()
	{
		//创建文档类
		XmlDocument doc = new XmlDocument();
		//创建文档声明
		XmlDeclaration dec = doc.CreateXmlDeclaration("1.0","utf-8","");
		doc.AppendChild(dec);
		//root节点
		XmlElement rootEle = doc.CreateElement("root");
		doc.AppendChild(rootEle);
		//students节点
		XmlElement studentsEle = doc.CreateElement("students");
		rootEle.AppendChild(studentsEle);
		//循环数据
		string[] names = new string[]{"小明","小白","小红"};
		int[] ages = new int[]{18,19,20};
		//循环创建student节点
		for(int i=0;i<3;i++)
		{
			XmlElement studentEle = doc.CreateElement("student");
			studentsEle.AppendChild(studentEle);

			//name节点
			XmlElement nameEle = doc.CreateElement("name");
			nameEle.InnerText = names[i];
			studentEle.AppendChild(nameEle);

			//年龄节点
			XmlElement ageEle = doc.CreateElement("age");
			ageEle.InnerText = ""+ages[i];
			studentEle.AppendChild(ageEle);

			//添加属性
			// studentEle.SetAttribute("id",i+"");
			XmlAttribute att = doc.CreateAttribute("id");
			att.Value = i+ "";
			studentEle.Attributes.Append(att);
		}

		//保存
		doc.Save(Application.dataPath + "/Resources/xmldata.xml");
	}
}

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