unity

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


public class PPSerialization  {

    public static BinaryFormatter binaryFormatter = new BinaryFormatter();

    public static void Save(string saveTag, object obj){
        MemoryStream memoryStream = new MemoryStream();
        binaryFormatter.Serialize(memoryStream, obj);
        string temp = System.Convert.ToBase64String(memoryStream.ToArray());
        PlayerPrefs.SetString(saveTag, temp);
    }

    public static object Load(string saveTag){
        string temp = PlayerPrefs.GetString(saveTag);
        if(temp == string.Empty){
            return null;
        }
        MemoryStream memoryStream = new MemoryStream(System.Convert.FromBase64String(temp));
        return binaryFormatter.Deserialize(memoryStream);
    }

}