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| using System.IO;
using System.Xml;
using UnityEngine;
using System.Collections;
public class XmlFile : MonoBehaviour {
private void Start()
{
//print(Application.dataPath);
CreateXml();
//UpdateXml();
//RemoveXml();
//AddXml();
}
//创建xml
private void CreateXml()
{
/**
* @避免字符串转义
* @允许字符串换行
* @可读性更高
*/
string filePath = Application.dataPath + @"/File/creat.xml";
if (!File.Exists(filePath))
{
XmlDocument xmlDoc = new XmlDocument();
//创建节点
XmlElement root = xmlDoc.CreateElement("root");
for (int i = 0; i < 5; i++)
{
XmlElement student = xmlDoc.CreateElement("student");
//设置属性
student.SetAttribute("id", i+1+"");
XmlElement name = xmlDoc.CreateElement("name");
//设置内容
name.InnerText = "小明";
XmlElement sex = xmlDoc.CreateElement("sex");
sex.InnerText = "男";
//添加节点
student.AppendChild(name);
student.AppendChild(sex);
root.AppendChild(student);
}
xmlDoc.AppendChild(root);
//xml保存到本地
xmlDoc.Save(filePath);
}
}
//更新xml
private void UpdateXml()
{
string filePath = Application.dataPath + @"/File/creat.xml";
if (File.Exists(filePath))
{
XmlDocument xmlDoc = new XmlDocument();
//读取文件
xmlDoc.Load(filePath);
//得到所有节点
XmlNodeList nodeList = xmlDoc.SelectSingleNode("root").ChildNodes;
//遍历节点
foreach (XmlElement ele in nodeList)
{
if (ele.GetAttribute("id") == "3")
{
foreach (XmlElement elea in ele.ChildNodes)
{
if (elea.Name == "sex")
{
elea.InnerText = "女";
}
}
//跳出循环
break;
}
Debug.Log("是否跳出循环");
}
//保存文件
xmlDoc.Save(filePath);
}
}
//删除节点
private void RemoveXml()
{
string filePath = Application.dataPath + @"/File/creat.xml";
if (File.Exists(filePath))
{
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load(filePath);
XmlNodeList nodeList = xmlDoc.SelectSingleNode("root").ChildNodes;
foreach (XmlElement ele in nodeList)
{
if (ele.GetAttribute("id") == "4")
{
foreach (XmlElement elea in ele.ChildNodes)
{
if (elea.Name == "name")
{
elea.RemoveAttribute("age");
}
if (elea.Name == "sex")
{
elea.RemoveAll();
}
}
//ele.RemoveChild(ele.LastChild);
ele.RemoveChild(ele.SelectSingleNode("sex"));
break;
}
}
xmlDoc.Save(filePath);
}
}
//添加文件
private void AddXml()
{
string filePath = Application.dataPath + @"/File/creat.xml";
if (File.Exists(filePath))
{
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load(filePath);
XmlNode root = xmlDoc.SelectSingleNode("root");
int len = xmlDoc.SelectSingleNode("root").ChildNodes.Count;
for (int i = len; i < len+2; i++)
{
XmlElement student = xmlDoc.CreateElement("student");
//设置属性
student.SetAttribute("id", i + 1 + "");
XmlElement name = xmlDoc.CreateElement("name");
//设置内容
name.InnerText = "小花";
XmlElement sex = xmlDoc.CreateElement("sex");
sex.InnerText = "男";
//添加节点
student.AppendChild(name);
student.AppendChild(sex);
root.AppendChild(student);
}
xmlDoc.Save(filePath);
}
}
}
|
