unity数据持久化-如何保存多个帐号密码并切换任意用户实现登陆

有很多方法可以解决。json XML都行。小白用了最简单unity自带的方法解决。下面贴上代码  有创建，删除，读取，存储。  还有具体用法。比较乱SaveData脚本可以直接拿到项目中使用。

using System;
using com.QH.QPGame.GameUtils;
using com.QH.QPGame.Utility;
using UnityEngine;

namespace com.QH.QPGame.Lobby
{
    /// 

    /// 设置管理类,保存读取设置,一般的只保存玩家客户端临时数据
    /// @Author: guofeng
    /// 
    public class GameSettings
    {
        public void Load()
        {
            string account = PlayerPrefs.GetString(GlobalConst.Settings.Account);
            string password = PlayerPrefs.GetString(GlobalConst.Settings.Password);
            string saveword = PlayerPrefs.GetString(GlobalConst.Settings.SavePass);
            //string version = PlayerPrefs.GetString(GlobalConst.Settings.Version);
            string installVersion = PlayerPrefs.GetString(GlobalConst.Settings.InstallVersion);

            GameApp.GameData.Account = account;
            GameApp.GameData.Password = password;
            GameApp.GameData.InstallVersion = installVersion;

            bool.TryParse(saveword, out GameApp.GameData.SavePassword);
        }

        public void Save()
        {
            PlayerPrefs.SetString(GlobalConst.Settings.Account, GameApp.GameData.Account);
            PlayerPrefs.SetString(GlobalConst.Settings.SavePass, GameApp.GameData.SavePassword.ToString());
            //PlayerPrefs.SetString(GlobalConst.Settings.Version, GameApp.GameData.Version);
            PlayerPrefs.SetString(GlobalConst.Settings.InstallVersion, GameApp.GameData.Version);

            if (GameApp.GameData.SavePassword)
            {
                PlayerPrefs.SetString(GlobalConst.Settings.Password, GameApp.GameData.Password);
            }
            else
            {
                PlayerPrefs.DeleteKey(GlobalConst.Settings.Password);
            }
        }


        public void SaveUserInfo()
        {
            SaveDate.creatData(GameApp.GameData.Account, GameApp.GameData.Password);
        }


    

        public void SwitchUser(int i)
        {
            var arrData = SaveDate.readData();
            GameApp.GameData.Account = arrData[i]["AccountName"];
            GameApp.GameData.Password = arrData[i]["AccountPassword"];
        }
        
    }
}

using UnityEngine;
using System.Collections;
using com.QH.QPGame.Lobby;

public class SwitchUser : MonoBehaviour {
    public UILabel[] labelList;
    public GameObject[] userFrame;


     void Start()
    {
       
    }

     void OnEnable()
    {
        Refresh();
    }
    void Update()
    {
       
    }
    public void Refresh()
    {
        if (SaveDate.readData() != null)
        {
            for (int i = 0; i < SaveDate.readData().Count; i++)
            {
                labelList[i].text = SaveDate.readData()[i]["AccountName"];
                userFrame[i].transform.localScale = Vector3.one;
            }
        }
          
    }

    public void DesCommon(int num)
    {
        SaveDate.deleteData(num);
        userFrame[SaveDate.readData().Count].transform.localScale = Vector3.zero;
        Refresh();
        GameApp.GameData.Account = "";
        GameApp.GameData.Password = "";
    }




    public void Login()
    {
        GameApp.Account.SendLoginHallSvr(
             GameApp.GameData.Account,
             GameApp.GameData.Password,
             GameApp.GameData.MAC
             );
    }

}

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

public class SaveDate : MonoBehaviour
{



	public static void deleteData (int index)
	{
	
		List> arr = readData ();
		arr.RemoveAt (index);
		saveData (arr);
	}


    public static void creatData (string account, string password)
	{
		List> arr = readData ();
		Dictionary dic = new Dictionary ();

		for (int i = 0; i < arr.Count; i++) {
			if (account == arr [i] ["AccountName"]) {
				dic = arr [i];
				//arr.Remove (arr [i]);
			}
		}
		if (dic.Count > 0) {
			arr.Remove (dic);
		}

		Dictionary openWith = new Dictionary ();
		openWith.Add ("AccountName", account);
		openWith.Add ("AccountPassword", password);
        List> arr1 = new List>();
        arr1.Add(openWith);
        foreach ( var obj in arr) {
            arr1.Add(obj);
        }

        saveData(arr1);

	}



    public static List> readData ()
	{
		List> arr = new List> ();
		for (int i = 0; i < 5; i++) {
			string acc = PlayerPrefs.GetString ("AccountName" + i, null); 
			string pass = PlayerPrefs.GetString ("AccountPassword" + i, null); 
			if (acc.Length>0) {
				Dictionary openWith = new Dictionary ();
				openWith.Add ("AccountName", acc);
				openWith.Add ("AccountPassword", pass);
				arr.Add (openWith);
			}
		}

		return arr;

	}


    public static void saveData (List> arr)
	{

		for (int k = 0; k < 5; k++) {
            if (k < arr.Count && arr[k]["AccountName"].Length>0) {
				PlayerPrefs.SetString ("AccountName" + k, arr [k] ["AccountName"]);
				PlayerPrefs.SetString ("AccountPassword" + k, arr [k] ["AccountPassword"]);
                Debug.Log(arr[k]["AccountName"] + "......" + arr[k]["AccountPassword"]);
			} else {
				PlayerPrefs.DeleteKey ("AccountName" + k);
				PlayerPrefs.DeleteKey ("AccountPassword" + k);
			}
		}

	}
	

}