【C#】读取和写入本地txt文件

标签：unity3d   c#   文件   读取   写入   

本次我们要使用C#的方式进行txt文件的读取和写入，在Unity的开发过程中同样适用，下面来具体实现吧。

• 创建文件的打开、关闭、读取、写入类：MyFileStream

要引入System.IO和System.Runtime.Serialization.Formatters.Binary和，一个是文件读取的IO类和另一个是二进制类，具体代码如下：

using UnityEngine;
using System.Collections;
using System.Runtime.Serialization.Formatters.Binary;
using System.IO;

public class MyFileStream
{
    FileStream file;

    StreamReader st;
    StreamWriter sw;

    public bool Open(string FileName, FileAccess Mode)
    {
        bool Success = false;
        string path = PathForDocumentsFile(FileName);

        if (Mode == FileAccess.Read)
        {
            if (File.Exists(path))
            {
                file = new FileStream(path, FileMode.Open, FileAccess.Read);
                if (file != null)
                {
                    st = new StreamReader(file);
                    Success = true;
                }
            }
        }
        else if (Mode == FileAccess.Write)
        {
            file = new FileStream(path, FileMode.Create, FileAccess.Write);
            if (file != null)
            {
                sw = new StreamWriter(file);
                Success = true;
            }
        }
        return Success;
    }

    public string ReadLine()
    {
        return st.ReadLine();
    }

    public void WriteLine(string Line)
    {
        sw.WriteLine(Line);
    }

    public void Close()
    {
        if( st != null )
        {
            st.Close();
            st = null;
        }
        if (sw != null)
        {
            sw.Close();
            sw = null;
        }
        if( file != null )
        {
            file.Close();
            file = null;
        }
    }

    public string PathForDocumentsFile(string filename)
    {
        //暂时只判断安卓和PC
        if (Application.platform == RuntimePlatform.Android)
        {
            string path = Application.persistentDataPath;
            path = path.Substring(0, path.LastIndexOf('/'));
            return Path.Combine(path, filename);
        }
        else
        {
            string path = Application.dataPath;
            path = path.Substring(0, path.LastIndexOf('/'));
            return Path.Combine(path, filename);
        }
    }

}

• 创建需要保存的文件和字段具体调用类：MyLocalData

using UnityEngine;
using System.Collections;

public class MyLocalData : MonoBehaviour {
    public static MyLocalData Instance()
    {
        if (_instance == null)
        {
            _instance = new MyLocalData();
        }
        return _instance;
    }

    public class MyLocalSaveData
    {
        public int test01;
        public int test02;
        public int test03;
    }

    public MyLocalSaveData m_Data = new MyLocalSaveData();

    MyFileStream m_FS = new MyFileStream();

    string m_FileName = "LocalSaveData.txt";

    public void InitLoad()
    {
        if (m_FS.Open(m_FileName, System.IO.FileAccess.Read))
        {
            m_Data.test01 = 0;
            m_Data.test02 = 0;
            m_Data.test03 = 0;
            
            int Num = 0;
            if(int.TryParse(m_FS.ReadLine() , out Num))
            {
                m_Data.test01 = Num;
            }
            if(int.TryParse(m_FS.ReadLine() , out Num))
            {
                m_Data.test02 = Num;
            }
            if(int.TryParse(m_FS.ReadLine() , out Num))
            {
                m_Data.test03 = Num;
            }

            m_FS.Close();
        }

    }

    public void Write()
    {
        if (m_FS.Open(m_FileName, System.IO.FileAccess.Write))
        {
            m_FS.WriteLine(m_Data.test01.ToString());
            m_FS.WriteLine(m_Data.test02.ToString());
            m_FS.WriteLine(m_Data.test03.ToString());

            m_FS.Close();
        }
    }
}

MyLocalData.Instance().m_Data.test01;

MyLocalData.Instance().m_Data.test01 = 1;
MyLocalData.Instance().Write();

【C#】读取和写入本地txt文件

标签：unity3d   c#   文件   读取   写入   

原文地址：http://blog.csdn.net/yangyy753/article/details/48113477