using UnityEngine;using System.Collections;
//路径工具类public class PathKit{    /** 后缀常量字符 */    public const string SUFFIX = ".txt";    const string PREFIX="file://";    const string FORMAT=".unity3d";        public static string RESROOT=Application.persistentDataPath+"/";    public static string GetStreamingAssetsPath (string p_filename)    {        string _strPath = "";        if (Application.platform == RuntimePlatform.WindowsEditor || Application.platform == RuntimePlatform.WindowsPlayer )            _strPath = "file://" + Application.streamingAssetsPath + "/" + p_filename + ".unity3d";        else if (Application.platform == RuntimePlatform.Android )            _strPath = Application.streamingAssetsPath + "/" + p_filename + ".unity3d";        else if (  Application.platform == RuntimePlatform.OSXEditor ||  Application.platform == RuntimePlatform.IPhonePlayer)            _strPath = "file://"+ Application.streamingAssetsPath + "/" + p_filename + ".unity3d";                return _strPath;    }                public static string GetOSDataPath (string p_filename)    {        string path;        path = "";                if (Application.platform == RuntimePlatform.OSXEditor)            path = Application.persistentDataPath + p_filename;                if (Application.platform == RuntimePlatform.IPhonePlayer)            path = RESROOT + p_filename;                        if (Application.platform == RuntimePlatform.WindowsPlayer || Application.platform == RuntimePlatform.WindowsEditor)            path = Application.dataPath +"/cache/"+ p_filename;                            if (Application.platform == RuntimePlatform.Android)              path =RESROOT + p_filename;    //    Debug.LogWarning("===========path:"+path);        return path;    }            public static string GetURLPath (string p_filename,bool needPreFix,bool needFormat)    {        string path;        path = "";                if (Application.platform == RuntimePlatform.OSXEditor)            path = Application.persistentDataPath+"/" + p_filename;                if (Application.platform == RuntimePlatform.IPhonePlayer)            path = RESROOT + p_filename;                        if (Application.platform == RuntimePlatform.WindowsEditor)            path = Application.dataPath +"/cache/"+ p_filename;                        if (Application.platform == RuntimePlatform.WindowsPlayer)            path = Application.dataPath +"/cache/"+ p_filename;                        if (Application.platform == RuntimePlatform.Android)              path = RESROOT + p_filename;        if(needPreFix) path=PREFIX+path;        if(needFormat) path=path+FORMAT;            //Debug.LogWarning("===========path:"+path);        return path;    }        public static string getFileName(string path)    {            string[] _list=    path.Split(new char[]{‘/‘});                            if(_list.Length>0)    return _list[_list.Length-1];        else            return "";            }        public static string getFileDir(string path)    {        path = path.Replace("\\","/");        path = path.Substring(0,path.LastIndexOf("/"));        return path;    }        public static void CreateDirIfNotExists(string path)    {        string dir = getFileDir(path);        if(!System.IO.Directory.Exists(dir))        {            System.IO.Directory.CreateDirectory(dir);        }    }    }

 private void SaveFriendToLocal()    {        string cacheStr = "";//内容string path = PathKit.RESROOT + string.Format(CHAT_CACHE_DIR, UserId);        FileStream fs = new FileStream(path, FileMode.OpenOrCreate, FileAccess.Write);        StreamWriter sw = new StreamWriter(fs);        sw.Flush();        sw.BaseStream.Seek(0, SeekOrigin.Begin);        sw.Write(cacheStr);        sw.Close();     }

 private void LoadFriendFromLocal()    {        try        {            string path = PathKit.RESROOT + string.Format(CHAT_CACHE_DIR,UserId);            if (!File.Exists(path)) return;            FileStream fs = new FileStream(path, FileMode.OpenOrCreate, FileAccess.Read);            byte[] bytes = new byte[fs.Length];            fs.Read(bytes, 0, (int)fs.Length);            fs.Close();            mCacheFriend = new List<string> ();string[] arr = Encoding.UTF8.GetString (bytes).Split (‘\n‘);            for (int i = 0; i < arr.Length; i++) {                string[] item = arr[i].Split (‘\t‘);                mCacheFriend.Add (item[0]);            }           }        catch (System.Exception e)        {            Debug.Log(e.Message);        }    }